Exposure
ID
GRAVI.2025-10-27T05:31:58.144_1
Header ID
GRAVI.2025-10-27T05:31:58.144
Date updated
2025-10-27 05:41:33 UTC+0000
Release date
2026-10-27 05:41:33 UTC+0000
UTC Start
2025-10-27 05:31:58.144
UTC End
2025-10-27 05:34:22.144
MJD Start
60975.23053407
MJD End
60975.23220073666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0028295
Ambient temperature (°C)
12.36
Seeing (arcsec)
0.98
Observation
ID
71012
Category
science
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
52662
Name
bet_Dor
RA
83.401496
DEC
-62.48975
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 77.1560 77.4210 80.5000 81.2000
A0-J2 123.4070 123.5960 60.3000 61.0000
A0-K0 127.8780 127.8980 44.1940 44.8290
G1-J2 57.5390 57.5110 32.7000 33.3000
G1-K0 80.0530 80.0120 9.3800 9.8360
J2-K0 35.5240 35.6200 329.4250 329.7880
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28NF.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60975.23053407
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME bet Dor
HIERARCH ESO INS SOBJ NAME bet_Dor
RA 83.401496
DEC -62.48975
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 77.156
HIERARCH ESO ISS PBL12 END 77.421
HIERARCH ESO ISS PBLA12 START 80.5
HIERARCH ESO ISS PBLA12 END 81.2
HIERARCH ESO ISS PBL13 START 123.407
HIERARCH ESO ISS PBL13 END 123.596
HIERARCH ESO ISS PBLA13 START 60.3
HIERARCH ESO ISS PBLA13 END 61.0
HIERARCH ESO ISS PBL14 START 127.878
HIERARCH ESO ISS PBL14 END 127.898
HIERARCH ESO ISS PBLA14 START 44.194
HIERARCH ESO ISS PBLA14 END 44.829
HIERARCH ESO ISS PBL23 START 57.539
HIERARCH ESO ISS PBL23 END 57.511
HIERARCH ESO ISS PBLA23 START 32.7
HIERARCH ESO ISS PBLA23 END 33.3
HIERARCH ESO ISS PBL24 START 80.053
HIERARCH ESO ISS PBL24 END 80.012
HIERARCH ESO ISS PBLA24 START 9.38
HIERARCH ESO ISS PBLA24 END 9.836
HIERARCH ESO ISS PBL34 START 35.524
HIERARCH ESO ISS PBL34 END 35.62
HIERARCH ESO ISS PBLA34 START 329.425
HIERARCH ESO ISS PBLA34 END 329.788
HIERARCH ESO ISS AMBI TAU0 START 0.00265
HIERARCH ESO ISS AMBI TAU0 END 0.003009
HIERARCH ESO ISS AMBI TEMP 12.36
HIERARCH ESO ISS AMBI FWHM START 1.02
HIERARCH ESO ISS AMBI FWHM END 0.94