Exposure
ID
GRAVI.2025-10-27T05:03:28.071_1
Header ID
GRAVI.2025-10-27T05:03:28.071
Date updated
2025-10-27 05:11:24 UTC+0000
Release date
2025-10-27 05:03:28 UTC+0000
UTC Start
2025-10-27 05:03:28.071
UTC End
2025-10-27 05:05:52.071
MJD Start
60975.21074156
MJD End
60975.21240822666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0030255
Ambient temperature (°C)
12.31
Seeing (arcsec)
1.03
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 74.7680 75.0490 74.9000 75.6000
A0-J2 121.6440 121.8470 54.5000 55.2000
A0-K0 127.6220 127.6560 38.7090 39.3530
G1-J2 57.7620 57.7420 27.7000 28.3000
G1-K0 80.4450 80.4220 5.4490 5.9060
J2-K0 34.7360 34.8430 326.4260 326.7830
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 60975.21074156
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 74.768
HIERARCH ESO ISS PBL12 END 75.049
HIERARCH ESO ISS PBLA12 START 74.9
HIERARCH ESO ISS PBLA12 END 75.6
HIERARCH ESO ISS PBL13 START 121.644
HIERARCH ESO ISS PBL13 END 121.847
HIERARCH ESO ISS PBLA13 START 54.5
HIERARCH ESO ISS PBLA13 END 55.2
HIERARCH ESO ISS PBL14 START 127.622
HIERARCH ESO ISS PBL14 END 127.656
HIERARCH ESO ISS PBLA14 START 38.709
HIERARCH ESO ISS PBLA14 END 39.353
HIERARCH ESO ISS PBL23 START 57.762
HIERARCH ESO ISS PBL23 END 57.742
HIERARCH ESO ISS PBLA23 START 27.7
HIERARCH ESO ISS PBLA23 END 28.3
HIERARCH ESO ISS PBL24 START 80.445
HIERARCH ESO ISS PBL24 END 80.422
HIERARCH ESO ISS PBLA24 START 5.449
HIERARCH ESO ISS PBLA24 END 5.906
HIERARCH ESO ISS PBL34 START 34.736
HIERARCH ESO ISS PBL34 END 34.843
HIERARCH ESO ISS PBLA34 START 326.426
HIERARCH ESO ISS PBLA34 END 326.783
HIERARCH ESO ISS AMBI TAU0 START 0.002702
HIERARCH ESO ISS AMBI TAU0 END 0.003349
HIERARCH ESO ISS AMBI TEMP 12.31
HIERARCH ESO ISS AMBI FWHM START 1.01
HIERARCH ESO ISS AMBI FWHM END 1.05