Exposure
ID
GRAVI.2021-08-27T04:44:26.675_2
Header ID
GRAVI.2021-08-27T04:44:26.675
Date updated
2021-08-27 05:13:53 UTC+0000
Release date
2022-08-27 05:13:53 UTC+0000
UTC Start
2021-08-27 04:44:26.675
UTC End
2021-08-27 04:57:46.675
MJD Start
59453.19753096
MJD End
59453.2067902193
Exposure time (s)
800.0
Validation level
1
Tau 0: Coherence time (s)
0.004377
Ambient temperature (°C)
8.36
Seeing (arcsec)
0.75
Observation
ID
47975
Category
science
Program ID
1104.C-0651(D)
Program Title
AN INTERFEROMETRIC SURVEY OF THE DYNAMICS AND CHEMICAL COMPOSITION OF DIRECTLY IMAGED EXOPLANETS
Program Type
DDT
PI / COI
LACOUR/ NOWAK/ WANG/ MOLLI`ERE/ CHOQUET/ PUEYO/ GREENBAUM/ WARD-DUONG/ BONNEFOY/ RAMEAU/ CHARNAY/ BOCCALETTI/ PETRUS/ BERGER/ LE BOUQUIN/ MONNIER/ GARDNER/ BENISTY/ GIRARD/ PALADINI/ MULLER/ KEPPLER/ LAGRANGE/ MOUILLET/ PERRIN/ KERVELLA/ ...
Target
ID
35998
Name
HR_8799
RA
346.869645833333
DEC
21.1342505555556
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 39.5240 40.7020 31.1000 32.6000
U1-U3 73.7720 76.2930 39.7000 40.7000
U1-U4 112.5640 115.8570 70.6650 70.0080
U2-U3 35.1920 36.4650 49.4000 49.9000
U2-U4 85.8650 87.1280 87.7150 86.5100
U3-U4 62.2190 61.8310 108.2560 107.1230
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 1104.C-0651(D)
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59453.19753096
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HR 8799
HIERARCH ESO INS SOBJ NAME HR8799b_new
RA 346.872425
DEC 21.13413
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 814.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 39.524
HIERARCH ESO ISS PBL12 END 40.702
HIERARCH ESO ISS PBLA12 START 31.1
HIERARCH ESO ISS PBLA12 END 32.6
HIERARCH ESO ISS PBL13 START 73.772
HIERARCH ESO ISS PBL13 END 76.293
HIERARCH ESO ISS PBLA13 START 39.7
HIERARCH ESO ISS PBLA13 END 40.7
HIERARCH ESO ISS PBL14 START 112.564
HIERARCH ESO ISS PBL14 END 115.857
HIERARCH ESO ISS PBLA14 START 70.665
HIERARCH ESO ISS PBLA14 END 70.008
HIERARCH ESO ISS PBL23 START 35.192
HIERARCH ESO ISS PBL23 END 36.465
HIERARCH ESO ISS PBLA23 START 49.4
HIERARCH ESO ISS PBLA23 END 49.9
HIERARCH ESO ISS PBL24 START 85.865
HIERARCH ESO ISS PBL24 END 87.128
HIERARCH ESO ISS PBLA24 START 87.715
HIERARCH ESO ISS PBLA24 END 86.51
HIERARCH ESO ISS PBL34 START 62.219
HIERARCH ESO ISS PBL34 END 61.831
HIERARCH ESO ISS PBLA34 START 108.256
HIERARCH ESO ISS PBLA34 END 107.123
HIERARCH ESO ISS AMBI TAU0 START 0.004453
HIERARCH ESO ISS AMBI TAU0 END 0.004301
HIERARCH ESO ISS AMBI TEMP 8.36
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.82
HIERARCH ESO FT ROBJ NAME HR_8799
HIERARCH ESO FT ROBJ ALPHA 230728.715
HIERARCH ESO FT ROBJ DELTA 210803.302