Exposure
ID
GRAVI.2025-10-27T05:09:49.087_1
Header ID
GRAVI.2025-10-27T05:09:49.087
Date updated
2025-10-27 05:21:25 UTC+0000
Release date
2025-10-27 05:09:49 UTC+0000
UTC Start
2025-10-27 05:09:49.087
UTC End
2025-10-27 05:12:13.087
MJD Start
60975.21515147
MJD End
60975.216818136665
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0032335000000000003
Ambient temperature (°C)
12.41
Seeing (arcsec)
0.94
Observation
ID
71011
Category
calibrator
Program ID
116.28NF.002
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 / LEFTLEY / KERVELLA / MÉRAND / PIETRZYNSKI / KAMINSKI / GIEREN / BAILLEUL / BRAS
Target
ID
52661
Name
HD_36689
RA
82.317425
DEC
-62.31438
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 75.4000 75.6780 76.4000 77.1000
A0-J2 122.1000 122.3010 56.1000 56.7000
A0-K0 127.6960 127.7270 40.1580 40.7990
G1-J2 57.7160 57.6940 29.0000 29.6000
G1-K0 80.3900 80.3620 6.4780 6.9340
J2-K0 34.9760 35.0800 327.2310 327.5900
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28NF.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60975.21515147
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 36689
HIERARCH ESO INS SOBJ NAME HD_36689
RA 82.317425
DEC -62.31438
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 170.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 48
HIERARCH ESO ISS PBL12 START 75.4
HIERARCH ESO ISS PBL12 END 75.678
HIERARCH ESO ISS PBLA12 START 76.4
HIERARCH ESO ISS PBLA12 END 77.1
HIERARCH ESO ISS PBL13 START 122.1
HIERARCH ESO ISS PBL13 END 122.301
HIERARCH ESO ISS PBLA13 START 56.1
HIERARCH ESO ISS PBLA13 END 56.7
HIERARCH ESO ISS PBL14 START 127.696
HIERARCH ESO ISS PBL14 END 127.727
HIERARCH ESO ISS PBLA14 START 40.158
HIERARCH ESO ISS PBLA14 END 40.799
HIERARCH ESO ISS PBL23 START 57.716
HIERARCH ESO ISS PBL23 END 57.694
HIERARCH ESO ISS PBLA23 START 29.0
HIERARCH ESO ISS PBLA23 END 29.6
HIERARCH ESO ISS PBL24 START 80.39
HIERARCH ESO ISS PBL24 END 80.362
HIERARCH ESO ISS PBLA24 START 6.478
HIERARCH ESO ISS PBLA24 END 6.934
HIERARCH ESO ISS PBL34 START 34.976
HIERARCH ESO ISS PBL34 END 35.08
HIERARCH ESO ISS PBLA34 START 327.231
HIERARCH ESO ISS PBLA34 END 327.59
HIERARCH ESO ISS AMBI TAU0 START 0.003378
HIERARCH ESO ISS AMBI TAU0 END 0.003089
HIERARCH ESO ISS AMBI TEMP 12.41
HIERARCH ESO ISS AMBI FWHM START 0.92
HIERARCH ESO ISS AMBI FWHM END 0.96