Exposure
ID
GRAVI.2025-05-22T06:27:17.099_1
Header ID
GRAVI.2025-05-22T06:27:17.099
Date updated
2025-05-22 06:36:16 UTC+0000
Release date
2025-05-22 06:27:17 UTC+0000
UTC Start
2025-05-22 06:27:17.099
UTC End
2025-05-22 06:29:57.099
MJD Start
60817.2689479
MJD End
60817.27079975185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.010371
Ambient temperature (°C)
14.59
Seeing (arcsec)
0.32
Observation
ID
67520
Category
calibrator
Program ID
115.282E.001
Program Title
CIRCUMSTELLAR ENVELOPES OF NEARBY CEPHEIDS WITH GRAVITY TO REFINE THE PERIOD-LUMINOSITY RELATION IN THE JWST ERA
Program Type
Normal
PI / COI
HOCDÉ / NARDETTO / GALLENNE / KERVELLA / PIETRZYNSKI / GIEREN / MÉRAND / BRAS / BAILLEUL / LEFTLEY / AFANASIEV
Target
ID
50219
Name
HD157919
RA
261.83876
DEC
-29.86781
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.2140 68.1620 273.7000 274.1000
K0-D0 95.5730 95.4730 253.2000 253.5000
K0-J3 56.4840 56.4970 334.7130 335.0660
G2-D0 39.7300 39.6990 216.1000 216.4000
G2-J3 64.0970 64.0390 43.2820 43.6100
D0-J3 103.6330 103.5450 40.5290 40.8550
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60817.2689479
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.83876
DEC -29.86781
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 68.214
HIERARCH ESO ISS PBL12 END 68.162
HIERARCH ESO ISS PBLA12 START 273.7
HIERARCH ESO ISS PBLA12 END 274.1
HIERARCH ESO ISS PBL13 START 95.573
HIERARCH ESO ISS PBL13 END 95.473
HIERARCH ESO ISS PBLA13 START 253.2
HIERARCH ESO ISS PBLA13 END 253.5
HIERARCH ESO ISS PBL14 START 56.484
HIERARCH ESO ISS PBL14 END 56.497
HIERARCH ESO ISS PBLA14 START 334.713
HIERARCH ESO ISS PBLA14 END 335.066
HIERARCH ESO ISS PBL23 START 39.73
HIERARCH ESO ISS PBL23 END 39.699
HIERARCH ESO ISS PBLA23 START 216.1
HIERARCH ESO ISS PBLA23 END 216.4
HIERARCH ESO ISS PBL24 START 64.097
HIERARCH ESO ISS PBL24 END 64.039
HIERARCH ESO ISS PBLA24 START 43.282
HIERARCH ESO ISS PBLA24 END 43.61
HIERARCH ESO ISS PBL34 START 103.633
HIERARCH ESO ISS PBL34 END 103.545
HIERARCH ESO ISS PBLA34 START 40.529
HIERARCH ESO ISS PBLA34 END 40.855
HIERARCH ESO ISS AMBI TAU0 START 0.009143
HIERARCH ESO ISS AMBI TAU0 END 0.011599
HIERARCH ESO ISS AMBI TEMP 14.59
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.32