Exposure
ID
GRAVI.2025-10-20T06:40:45.220_1
Header ID
GRAVI.2025-10-20T06:40:45.220
Date updated
2025-10-20 06:51:01 UTC+0000
Release date
2026-10-20 06:51:01 UTC+0000
UTC Start
2025-10-20 06:40:45.220
UTC End
2025-10-20 06:43:09.220
MJD Start
60968.27830116
MJD End
60968.27996782666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.016036
Ambient temperature (°C)
15.88
Seeing (arcsec)
0.56
Observation
ID
70962
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 B5 D0 G1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 37.1150 37.2520 129.8000 130.3000
A0-D0 31.9960 31.9920 53.4000 54.0000
A0-G1 80.8160 81.0480 89.9200 90.5490
B5-D0 42.9310 42.9420 356.2000 356.6000
B5-G1 57.4960 57.5430 65.4650 66.1160
D0-G1 58.2990 58.5220 108.9850 109.5380
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 60968.27830116
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 B5
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 G1
EXPTIME 170.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 48
HIERARCH ESO ISS PBL12 START 37.115
HIERARCH ESO ISS PBL12 END 37.252
HIERARCH ESO ISS PBLA12 START 129.8
HIERARCH ESO ISS PBLA12 END 130.3
HIERARCH ESO ISS PBL13 START 31.996
HIERARCH ESO ISS PBL13 END 31.992
HIERARCH ESO ISS PBLA13 START 53.4
HIERARCH ESO ISS PBLA13 END 54.0
HIERARCH ESO ISS PBL14 START 80.816
HIERARCH ESO ISS PBL14 END 81.048
HIERARCH ESO ISS PBLA14 START 89.92
HIERARCH ESO ISS PBLA14 END 90.549
HIERARCH ESO ISS PBL23 START 42.931
HIERARCH ESO ISS PBL23 END 42.942
HIERARCH ESO ISS PBLA23 START 356.2
HIERARCH ESO ISS PBLA23 END 356.6
HIERARCH ESO ISS PBL24 START 57.496
HIERARCH ESO ISS PBL24 END 57.543
HIERARCH ESO ISS PBLA24 START 65.465
HIERARCH ESO ISS PBLA24 END 66.116
HIERARCH ESO ISS PBL34 START 58.299
HIERARCH ESO ISS PBL34 END 58.522
HIERARCH ESO ISS PBLA34 START 108.985
HIERARCH ESO ISS PBLA34 END 109.538
HIERARCH ESO ISS AMBI TAU0 START 0.015704
HIERARCH ESO ISS AMBI TAU0 END 0.016368
HIERARCH ESO ISS AMBI TEMP 15.88
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.51