Stage 00

Summary

  • Make sure you followed the steps in Before Running!

  • You should now have a run directory which include pacman_script.py, fit_par.txt and obs_par.pcf.

  • Make sure the path to run directory and data directory are set in the pcf

  • Navigate to the run directory and execute the pacman_script.py file using the --s00 flag and the --eventlabel argument

  • Continue with s01

  1. Set up pcf

    In Before Running, we did set up the location of your data directory (=datadir) and run directory (=rundir) in the pcf.

    As a quick reminder:

    For me, these directories are located at the following places:

    • datadir = /home/zieba/Desktop/Data/GJ1214_Hubble13021

    • rundir = /home/zieba/Desktop/Projects/Observations/Hubble/GJ1214_13021

    The rundir should contain the following three files:

    • pacman_script.py

    • fit_par.txt

    • obs_par.pcf

      These files can be either found in your package directory, on GitHub or can be downloaded here.

      As mentioned in the Introduction, in this example going to analyze just two visits taken in the middle of the GO 13021 program (Dates (YYYY-MM-DD): 2013-03-13 and 2013-03-15).

    Set up which_visits in the pcf

    If your datadir contains a lot of visits, but you only want to analyze a subset you can use the which_visits parameter in the pcf. If the user downloaded all 15 visits in GO 13021, he or she can choose: which_visits = [5,6] in the pcf. If you only downloaded the two visits as shown in the Download Data instructions, leave the default setting (which should be which_visits     everything).

  2. Run PACMAN

    You can give your analysis an “eventlabel” which might make it easier to identify it in the future. Here we just call our analysis: ‘GJ1214_Hubble13021’.

    Now navigate to your rundir in your terminal and type:

    python pacman_script.py --s00 --eventlabel='GJ1214_Hubble13021'
    

    Here, --s00 means we are going to run Stage 00 and --eventlabel will be used in the naming of files and directories.

    The --eventlabel argument is just needed when running --s00.

    When running s00, the first step creates a new subdirectory in rundir for the analysis which we will call the work directory (=workdir).

    It will be saved in the rundir and have a form like: /home/zieba/Desktop/Projects/Observations/Hubble/GJ1214_13021/run_2022-03-04_15-10-29_GJ1214_Hubble13021

    The fit_par.txt and obs_par.pcf files which are in the run directory will be copied there.

    You should have a data structure similar to the following now:

user
└── Desktop
        └── Projects
                └── Observations
                        └── Hubble
                                └── GJ1214_13021
                                        ├── pacman_script.py
                                        ├── fit_par.txt
                                        ├── obs_par.pcf
                                        └── run_2022-03-04_15-10-29_GJ1214_Hubble13021
                                                ├── fit_par.txt
                                                └── obs_par.pcf

Note

All next steps are going to use the pcf and fit_par which is located in the workdir (run_2022-03-04_15-10-29_GJ1214_Hubble13021) and not the pcf and fit_par in the rundir (GJ1214_13021)!!

Note

You can type python pacman_script.py --help to see all possible flags which are available.

  1. Results

    After running Stage 00 you should get an output in the terminal similar to this one:

    Starting s00
    Found 1145 data file(s) ending in ima.fits
    Reading in files and their headers: 100%|##########| 1145/1145 [00:03<00:00, 303.42it/s]
    Determining orbit(s) and visit(s): 100%|##########| 1145/1145 [00:00<00:00, 261786.76it/s]
    The user does not want to analyse every visit (which_visits != everything). The amount of files analyzed therefore reduced from 1145 to 150.
    Writing table into filelist.txt
    Saving Metadata
    Finished s00
    

    You will also end up with a new file called filelist.txt. It should look like this:

    ================== ===== ====== ====== ======== ================== ================== ================== ==== ==========
             filenames instr ivisit iorbit iexp_orb              t_mjd            t_visit            t_orbit scan        exp
    ================== ===== ====== ====== ======== ================== ================== ================== ==== ==========
    ibxy07p9q_ima.fits F130N      0      0       -1     56364.52973075                0.0                0.0   -1   0.833445
    ibxy07paq_ima.fits  G141      0      0        0 56364.531017044996   1.85226479312405   1.85226479312405    0 103.128586
    ibxy07pbq_ima.fits  G141      0      0        1 56364.532660565004  4.218933605588973  4.218933605588973    1 103.128586
    ibxy07pcq_ima.fits  G141      0      0        2    56364.534304085  6.585602397099137  6.585602397099137    0 103.128586
    ibxy07pdq_ima.fits  G141      0      0        3      56364.5359476  8.952264001127332  8.952264001127332    1 103.128586
    ibxy07pfq_ima.fits  G141      0      0        4 56364.537591119995 11.318932792637497 11.318932792637497    0 103.128586
    ibxy07pgq_ima.fits  G141      0      0        5 56364.539234640004  13.68560160510242  13.68560160510242    1 103.128586
    ibxy07phq_ima.fits  G141      0      0        6    56364.540878155 16.052263198653236 16.052263198653236    0 103.128586
    ibxy07pjq_ima.fits  G141      0      0        7    56364.542521675  18.41893200064078  18.41893200064078    1 103.128586
    ibxy07pkq_ima.fits  G141      0      0        8    56364.544165195 20.785600802628323 20.785600802628323    0 103.128586
    ibxy07plq_ima.fits  G141      0      0        9     56364.54580871  23.15226239617914  23.15226239617914    1 103.128586
    ibxy07pnq_ima.fits  G141      0      0       10     56364.54745223 25.518931198166683 25.518931198166683    0 103.128586
    ibxy07poq_ima.fits  G141      0      0       11     56364.54909575 27.885600000154227 27.885600000154227    1 103.128586
    ibxy07ppq_ima.fits  G141      0      0       12 56364.550739269995  30.25226879166439  30.25226879166439    0 103.128586
    ibxy07prq_ima.fits  G141      0      0       13     56364.55238279 32.618937604129314 32.618937604129314    1 103.128586
    ibxy07psq_ima.fits  G141      0      0       14    56364.554026305  34.98559919768013  34.98559919768013    0 103.128586
    ibxy07ptq_ima.fits  G141      0      0       15    56364.555669825 37.352267999667674 37.352267999667674    1 103.128586
    ibxy07pvq_ima.fits  G141      0      0       16    56364.557313345  39.71893680165522  39.71893680165522    0 103.128586
    ibxy07pwq_ima.fits  G141      0      0       17     56364.55895686 42.085598395206034 42.085598395206034    1 103.128586
    ibxy07pxq_ima.fits F130N      0      1       -1  56364.59243889499  90.29972878983244                0.0   -1   0.833445
    ibxy07pyq_ima.fits  G141      0      1        0     56364.59372538  92.15226719970815 1.8525384098757058    0 103.128586
    ibxy07q0q_ima.fits  G141      0      1        1 56364.595368894996  94.51892879325897  4.219200003426522    1 103.128586
    ibxy07q1q_ima.fits  G141      0      1        2 56364.597012415004  96.88559760572389  6.585868815891445    0 103.128586
    ibxy07q2q_ima.fits  G141      0      1        3    56364.598655935  99.25226639723405   8.95253760740161    1 103.128586
    ibxy07q4q_ima.fits  G141      0      1        4    56364.600299455  101.6189351992216 11.319206409389153    0 103.128586
    ibxy07q5q_ima.fits  G141      0      1        5    56364.601942975 103.98560400120914 13.685875211376697    1 103.128586
    ibxy07q6q_ima.fits  G141      0      1        6 56364.603586490004 106.35226560523733 16.052536815404892    0 103.128586
    ibxy07q8q_ima.fits  G141      0      1        7     56364.60523001  108.7189343967475 18.419205606915057    1 103.128586
    ibxy07q9q_ima.fits  G141      0      1        8     56364.60687353 111.08560319873504   20.7858744089026    0 103.128586
    ibxy07qaq_ima.fits  G141      0      1        9    56364.608517045 113.45226480276324 23.152536012930796    1 103.128586
    ibxy07qcq_ima.fits  G141      0      1       10 56364.610160565004 115.81893360475078  25.51920481491834    0 103.128586
    ibxy07qdq_ima.fits  G141      0      1       11    56364.611804085 118.18560239626095 27.885873606428504    1 103.128586
    ibxy07qeq_ima.fits  G141      0      1       12      56364.6134476 120.55226400028914   30.2525352104567    0 103.128586
    ibxy07qgq_ima.fits  G141      0      1       13 56364.615091119995  122.9189327917993 32.619204001966864    1 103.128586
    ibxy07qhq_ima.fits  G141      0      1       14     56364.61673464 125.28560160426423  34.98587281443179    0 103.128586
    ibxy07qiq_ima.fits  G141      0      1       15    56364.618378155 127.65226319781505   37.3525344079826    1 103.128586
    ibxy07qkq_ima.fits  G141      0      1       16    56364.620021675  130.0189319998026 39.719203209970146    0 103.128586
    ibxy07qlq_ima.fits  G141      0      1       17    56364.621665195 132.38560080179013  42.08587201195769    1 103.128586
    ibxy07qmq_ima.fits  G141      0      1       18     56364.62330871 134.75226239534095 44.452533605508506    0 103.128586
    ibxy07qoq_ima.fits F130N      0      2       -1    56364.658908525 186.01599600166082                0.0   -1   0.833445
    ibxy07qpq_ima.fits  G141      0      2        0     56364.66019501 187.86853440105915 1.8525383993983269    0 103.128586
    ibxy07qqq_ima.fits  G141      0      2        1     56364.66183871  190.2354624029249 4.2194664012640715    1 103.128586
    ibxy07qrq_ima.fits  G141      0      2        2    56364.663482045  192.6018647965975  6.585868794936687    0 103.128586
    ibxy07qtq_ima.fits  G141      0      2        3 56364.665125750005 194.96880000689998  8.952804005239159    1 103.128586
    ibxy07quq_ima.fits  G141      0      2        4    56364.666769085  197.3352024005726 11.319206398911774    0 103.128586
    ibxy07qvq_ima.fits  G141      0      2        5     56364.66841279  199.7021376003977 13.686141598736867    1 103.128586
    ibxy07qxq_ima.fits  G141      0      2        6     56364.67005612 202.06853279611096 16.052536794450134    0 103.128586
    ibxy07qyq_ima.fits  G141      0      2        7 56364.671699825005 204.43546800641343 18.419472004752606    1 103.128586
    ibxy07qzq_ima.fits  G141      0      2        8     56364.67334316 206.80187040008605  20.78587439842522    0 103.128586
    ibxy07r1q_ima.fits  G141      0      2        9     56364.67498686  209.1687984019518 23.152802400290966    1 103.128586
    ibxy07r2q_ima.fits  G141      0      2       10    56364.676630195  211.5352007956244  25.51920479396358    0 103.128586
    ibxy07r3q_ima.fits  G141      0      2       11 56364.678273900005 213.90213600592688 27.886140004266053    1 103.128586
    ibxy07r5q_ima.fits  G141      0      2       12 56364.679917229994 216.26853119116277  30.25253518950194    0 103.128586
    ibxy07r6q_ima.fits  G141      0      2       13    56364.681560935 218.63546640146524  32.61947039980441    1 103.128586
    ibxy07r7q_ima.fits  G141      0      2       14     56364.68320427 221.00186879513785  34.98587279347703    0 103.128586
    ibxy07r9q_ima.fits  G141      0      2       15     56364.68484797  223.3687967970036  37.35280079534277    1 103.128586
    ibxy07raq_ima.fits  G141      0      2       16 56364.686491304994  225.7351991906762  39.71920318901539    0 103.128586
    ibxy07rbq_ima.fits  G141      0      2       17     56364.68813501 228.10213440097868  42.08613839931786    1 103.128586
    ibxy07rdq_ima.fits  G141      0      2       18 56364.689778340005 230.46852960716933 44.452533605508506    0 103.128586
    ibxy07req_ima.fits F130N      0      3       -1     56364.72539019 281.74959359457716                0.0   -1   0.833445
    ibxy07rfq_ima.fits  G141      0      3        0     56364.72667649 283.60186559613794 1.8522720015607774    0 103.128586
    ibxy07rgq_ima.fits  G141      0      3        1 56364.728320195005  285.9688008064404 4.2192072118632495    1 103.128586
    ibxy07riq_ima.fits  G141      0      3        2     56364.72996353   288.335203200113  6.585609605535865    0 103.128586
    ibxy07rjq_ima.fits  G141      0      3        3     56364.73160723  290.7021312019788   8.95253760740161    1 103.128586
    ibxy07rkq_ima.fits  G141      0      3        4    56364.733250565  293.0685335956514 11.318940001074225    0 103.128586
    ibxy07rlq_ima.fits  G141      0      3        5 56364.734894270005 295.43546880595386 13.685875211376697    1 103.128586
    ibxy07rmq_ima.fits  G141      0      3        6 56364.736537599994 297.80186399118975 16.052270396612585    0 103.128586
    ibxy07rnq_ima.fits  G141      0      3        7    56364.738181305  300.1687992014922 18.419205606915057    1 103.128586
    ibxy07roq_ima.fits  G141      0      3        8     56364.73982464 302.53520159516484 20.785608000587672    0 103.128586
    ibxy07rpq_ima.fits  G141      0      3        9     56364.74146834  304.9021295970306 23.152536002453417    1 103.128586
    ibxy07rqq_ima.fits  G141      0      3       10 56364.743111674994  307.2685319907032 25.518938396126032    0 103.128586
    ibxy07rrq_ima.fits  G141      0      3       11     56364.74475538 309.63546720100567 27.885873606428504    1 103.128586
    ibxy07rsq_ima.fits  G141      0      3       12 56364.746398710005  312.0018624071963  30.25226881261915    0 103.128586
    ibxy07rtq_ima.fits  G141      0      3       13    56364.748042415   314.368797596544 32.619204001966864    1 103.128586
    ibxy07ruq_ima.fits  G141      0      3       14 56364.749685749994 316.73519999021664  34.98560639563948    0 103.128586
    ibxy07rvq_ima.fits  G141      0      3       15    56364.751329455  319.1021352005191  37.35254160594195    1 103.128586
    ibxy07rwq_ima.fits  G141      0      3       16     56364.75297279 321.46853759419173  39.71894399961457    0 103.128586
    ibxy07rxq_ima.fits  G141      0      3       17     56364.75461649  323.8354655960575  42.08587200148031    1 103.128586
    ibxy07ryq_ima.fits  G141      0      3       18  56364.75625982499  326.2018679897301 44.452274395152926    0 103.128586
    ibxy06d0q_ima.fits F130N      1      0       -1    56366.125031495                0.0                0.0   -1   0.833445
    ibxy06d1q_ima.fits  G141      1      0        0    56366.126317785 1.8522575951647013 1.8522575951647013    0 103.128586
    ibxy06d2q_ima.fits  G141      1      0        1    56366.127961305  4.218926397152245  4.218926397152245    1 103.128586
    ibxy06d3q_ima.fits  G141      1      0        2    56366.129604825  6.585595199139789  6.585595199139789    0 103.128586
    ibxy06d4q_ima.fits  G141      1      0        3 56366.131248339996  8.952256792690605  8.952256792690605    1 103.128586
    ibxy06d6q_ima.fits  G141      1      0        4 56366.132891860005 11.318925605155528 11.318925605155528    0 103.128586
    ibxy06d7q_ima.fits  G141      1      0        5     56366.13453538 13.685594396665692 13.685594396665692    1 103.128586
    ibxy06d8q_ima.fits  G141      1      0        6    56366.136178895 16.052256000693887 16.052256000693887    0 103.128586
    ibxy06daq_ima.fits  G141      1      0        7 56366.137822414996 18.418924792204052 18.418924792204052    1 103.128586
    ibxy06dbq_ima.fits  G141      1      0        8 56366.139465935004 20.785593604668975 20.785593604668975    0 103.128586
    ibxy06dcq_ima.fits  G141      1      0        9    56366.141109455  23.15226239617914  23.15226239617914    1 103.128586
    ibxy06deq_ima.fits  G141      1      0       10    56366.142752975 25.518931198166683 25.518931198166683    0 103.128586
    ibxy06dfq_ima.fits  G141      1      0       11 56366.144396489995   27.8855927917175   27.8855927917175    1 103.128586
    ibxy06dgq_ima.fits  G141      1      0       12 56366.146040010004 30.252261604182422 30.252261604182422    0 103.128586
    ibxy06diq_ima.fits  G141      1      0       13     56366.14768353  32.61893039569259  32.61893039569259    1 103.128586
    ibxy06djq_ima.fits  G141      1      0       14    56366.149327045  34.98559199972078  34.98559199972078    0 103.128586
    ibxy06dnq_ima.fits  G141      1      0       15 56366.150970564995  37.35226079123095  37.35226079123095    1 103.128586
    ibxy06dpq_ima.fits  G141      1      0       16 56366.152614085004  39.71892960369587  39.71892960369587    0 103.128586
    ibxy06dqq_ima.fits  G141      1      0       17      56366.1542576 42.085591197246686 42.085591197246686    1 103.128586
    ibxy06dvq_ima.fits F130N      1      1       -1    56366.187809265  90.39998879889026                0.0   -1   0.833445
    ibxy06dwq_ima.fits  G141      1      1        0    56366.189095565  92.25226080045104 1.8522720015607774    0 103.128586
    ibxy06dyq_ima.fits  G141      1      1        1 56366.190739084996   94.6189295919612  4.218940793070942    1 103.128586
    ibxy06dzq_ima.fits  G141      1      1        2 56366.192382605004  96.98559840442613  6.585609605535865    0 103.128586
    ibxy06e0q_ima.fits  G141      1      1        3     56366.19402612  99.35225999797694  8.952271199086681    1 103.128586
    ibxy06e2q_ima.fits  G141      1      1        4     56366.19566964 101.71892879996449 11.318940001074225    0 103.128586
    ibxy06e3q_ima.fits  G141      1      1        5 56366.197313159995 104.08559759147465  13.68560879258439    1 103.128586
    ibxy06e4q_ima.fits  G141      1      1        6    56366.198956675 106.45225919550285 16.052270396612585    0 103.128586
    ibxy06e6q_ima.fits  G141      1      1        7  56366.20060019501 108.81892800796777 18.418939209077507    1 103.128586
    ibxy06e7q_ima.fits  G141      1      1        8    56366.202243715 111.18559679947793 20.785608000587672    0 103.128586
    ibxy06e8q_ima.fits  G141      1      1        9     56366.20388723 113.55225840350613 23.152269604615867    1 103.128586
    ibxy06eaq_ima.fits  G141      1      1       10     56366.20553075  115.9189271950163 25.518938396126032    0 103.128586
    ibxy06ebq_ima.fits  G141      1      1       11  56366.20717427001 118.28559600748122 27.885607208590955    1 103.128586
    ibxy06ecq_ima.fits  G141      1      1       12    56366.208817785 120.65225760103203  30.25226880214177    0 103.128586
    ibxy06eeq_ima.fits  G141      1      1       13    56366.210461305 123.01892640301958 32.618937604129314    1 103.128586
    ibxy06efq_ima.fits  G141      1      1       14    56366.212104825 125.38559519452974  34.98560639563948    0 103.128586
    ibxy06egq_ima.fits  G141      1      1       15     56366.21374834 127.75225679855794 37.352267999667674    1 103.128586
    ibxy06eiq_ima.fits  G141      1      1       16 56366.215391859994  130.1189255900681  39.71893679117784    0 103.128586
    ibxy06ejq_ima.fits  G141      1      1       17     56366.21703538 132.48559440253302  42.08560560364276    1 103.128586
    ibxy06ekq_ima.fits  G141      1      1       18    56366.218678895 134.85225599608384  44.45226719719358    0 103.128586
    ibxy06enq_ima.fits F130N      1      2       -1 56366.254279265006 186.11678880639374                0.0   -1   0.833445
    ibxy06eoq_ima.fits  G141      1      2        0 56366.255565750005 187.96932720579207 1.8525383993983269    0 103.128586
    ibxy06epq_ima.fits  G141      1      2        1    56366.257209085 190.33572959946468  4.218940793070942    1 103.128586
    ibxy06eqq_ima.fits  G141      1      2        2     56366.25885279 192.70266479928978  6.585875992896035    0 103.128586
    ibxy06esq_ima.fits  G141      1      2        3     56366.26049612 195.06905999500304  8.952271188609302    1 103.128586
    ibxy06etq_ima.fits  G141      1      2        4 56366.262139825005 197.43599520530552 11.319206398911774    0 103.128586
    ibxy06euq_ima.fits  G141      1      2        5     56366.26378316 199.80239759897813  13.68560879258439    1 103.128586
    ibxy06ewq_ima.fits  G141      1      2        6     56366.26542686 202.16932560084388 16.052536794450134    0 103.128586
    ibxy06exq_ima.fits  G141      1      2        7    56366.267070195  204.5357279945165  18.41893918812275    1 103.128586
    ibxy06eyq_ima.fits  G141      1      2        8 56366.268713900005 206.90266320481896  20.78587439842522    0 103.128586
    ibxy06f0q_ima.fits  G141      1      2        9 56366.270357229994 209.26905839005485  23.15226958366111    1 103.128586
    ibxy06f1q_ima.fits  G141      1      2       10    56366.272000935 211.63599360035732  25.51920479396358    0 103.128586
    ibxy06f2q_ima.fits  G141      1      2       11     56366.27364427 214.00239599402994 27.885607187636197    1 103.128586
    ibxy06f4q_ima.fits  G141      1      2       12     56366.27528797 216.36932399589568  30.25253518950194    0 103.128586
    ibxy06f5q_ima.fits  G141      1      2       13 56366.276931304994  218.7357263895683  32.61893758317456    1 103.128586
    ibxy06f6q_ima.fits  G141      1      2       14     56366.27857501 221.10266159987077  34.98587279347703    0 103.128586
    ibxy06f8q_ima.fits  G141      1      2       15 56366.280218340005 223.46905680606142 37.352267999667674    1 103.128586
    ibxy06f9q_ima.fits  G141      1      2       16    56366.281862045 225.83599199540913  39.71920318901539    0 103.128586
    ibxy06faq_ima.fits  G141      1      2       17     56366.28350538 228.20239439955913  42.08560559316538    1 103.128586
    ibxy06fcq_ima.fits  G141      1      2       18    56366.285149085 230.56932959938422 44.452540792990476    0 103.128586
    ibxy06fdq_ima.fits F130N      1      3       -1     56366.32076075  281.8501271994319                0.0   -1   0.833445
    ibxy06feq_ima.fits  G141      1      3        0     56366.32204723 283.70265840087086 1.8525312014389783    0 103.128586
    ibxy06ffq_ima.fits  G141      1      3        1    56366.323690565  286.0690607945435  4.218933595111594    1 103.128586
    ibxy06fhq_ima.fits  G141      1      3        2 56366.325334270005 288.43599600484595  6.585868805414066    0 103.128586
    ibxy06fiq_ima.fits  G141      1      3        3 56366.326977599994 290.80239119008183  8.952263990649953    1 103.128586
    ibxy06fjq_ima.fits  G141      1      3        4    56366.328621305  293.1693264003843 11.319199200952426    0 103.128586
    ibxy06fkq_ima.fits  G141      1      3        5     56366.33026464  295.5357287940569 13.685601594625041    1 103.128586
    ibxy06flq_ima.fits  G141      1      3        6     56366.33190834 297.90265679592267 16.052529596490785    0 103.128586
    ibxy06fmq_ima.fits  G141      1      3        7 56366.333551674994  300.2690591895953   18.4189319901634    1 103.128586
    ibxy06fnq_ima.fits  G141      1      3        8     56366.33519538 302.63599439989775 20.785867200465873    0 103.128586
    ibxy06foq_ima.fits  G141      1      3        9 56366.336838710005  305.0023896060884  23.15226240665652    1 103.128586
    ibxy06fpq_ima.fits  G141      1      3       10    56366.338482415  307.3693247954361 25.519197596004233    0 103.128586
    ibxy06fqq_ima.fits  G141      1      3       11  56366.34012574999 309.73572718910873 27.885599989676848    1 103.128586
    ibxy06frq_ima.fits  G141      1      3       12    56366.341769455  312.1026623994112  30.25253519997932    0 103.128586
    ibxy06fsq_ima.fits  G141      1      3       13     56366.34341279  314.4690647930838 32.618937593651935    1 103.128586
    ibxy06ftq_ima.fits  G141      1      3       14     56366.34505649 316.83599279494956  34.98586559551768    0 103.128586
    ibxy06fuq_ima.fits  G141      1      3       15    56366.346699825 319.20239519909956 37.352267999667674    1 103.128586
    ibxy06fvq_ima.fits  G141      1      3       16     56366.34834353 321.56933039892465  39.71920319949277    0 103.128586
    ibxy06fwq_ima.fits  G141      1      3       17 56366.349986860005  323.9357256051153  42.08559840568341    1 103.128586
    ibxy06fxq_ima.fits  G141      1      3       18    56366.351630565   326.302660794463  44.45253359503113    0 103.128586
    ================== ===== ====== ====== ======== ================== ================== ================== ==== ==========
    

    It has the following columns:

    • filenames

    • instr: The specific filter or grism used in the obervation

    • ivisit: Current visit of the observation

    • iorbit: Current orbit of the observation

    • t_mjd: Time in Modified Julian Date (MJD)

    • t_visit: Time since the first exposure in the visit in minutes

    • t_orbit: Time since the first exposure in the orbit in minutes

    • scan: Scan direction:

      • 0: forward scan

      • 1: reverse scan

      • -1: not a spectrum but a direct image

    • exp: exposure time in seconds