Exposure
ID
GRAVI.2025-10-27T08:00:43.522_1
Header ID
GRAVI.2025-10-27T08:00:43.522
Date updated
2025-10-27 08:16:01 UTC+0000
Release date
2026-10-27 08:16:00 UTC+0000
UTC Start
2025-10-27 08:00:43.522
UTC End
2025-10-27 08:06:43.522
MJD Start
60975.33383706
MJD End
60975.33800372667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004013
Ambient temperature (°C)
12.7
Seeing (arcsec)
0.925
Observation
ID
71018
Category
science
Program ID
116.28NT.001
Program Title
UNRAVELING GALACTIC BINARY CEPHEIDS: INSIGHTS FROM INTERFEROMETRY AND THE UPCOMING GAIA DATA RELEASE
Program Type
Normal
PI / COI
GALLENNE / KERVELLA / EVANS / MÉRAND / PIETRZYNSKI / GIEREN / PILECKI
Target
ID
52702
Name
CE_Pup
RA
123.530467
DEC
-42.56814
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 74.2790 75.3060 91.1000 92.1000
A0-J2 114.0010 115.1000 65.0000 66.3000
A0-K0 121.8080 122.3530 44.0170 45.3400
G1-J2 57.5040 57.5960 30.3000 31.6000
G1-K0 89.6240 89.5920 6.6520 7.5560
J2-K0 43.5880 43.7710 334.6520 335.2030
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28NT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60975.33383706
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME CE_Pup
HIERARCH ESO INS SOBJ NAME CE_Pup
RA 123.530467
DEC -42.56814
HIERARCH ESO INS SPEC RES MEDIUM
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 376.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 74.279
HIERARCH ESO ISS PBL12 END 75.306
HIERARCH ESO ISS PBLA12 START 91.1
HIERARCH ESO ISS PBLA12 END 92.1
HIERARCH ESO ISS PBL13 START 114.001
HIERARCH ESO ISS PBL13 END 115.1
HIERARCH ESO ISS PBLA13 START 65.0
HIERARCH ESO ISS PBLA13 END 66.3
HIERARCH ESO ISS PBL14 START 121.808
HIERARCH ESO ISS PBL14 END 122.353
HIERARCH ESO ISS PBLA14 START 44.017
HIERARCH ESO ISS PBLA14 END 45.34
HIERARCH ESO ISS PBL23 START 57.504
HIERARCH ESO ISS PBL23 END 57.596
HIERARCH ESO ISS PBLA23 START 30.3
HIERARCH ESO ISS PBLA23 END 31.6
HIERARCH ESO ISS PBL24 START 89.624
HIERARCH ESO ISS PBL24 END 89.592
HIERARCH ESO ISS PBLA24 START 6.652
HIERARCH ESO ISS PBLA24 END 7.556
HIERARCH ESO ISS PBL34 START 43.588
HIERARCH ESO ISS PBL34 END 43.771
HIERARCH ESO ISS PBLA34 START 334.652
HIERARCH ESO ISS PBLA34 END 335.203
HIERARCH ESO ISS AMBI TAU0 START 0.00358
HIERARCH ESO ISS AMBI TAU0 END 0.004446
HIERARCH ESO ISS AMBI TEMP 12.7
HIERARCH ESO ISS AMBI FWHM START 0.96
HIERARCH ESO ISS AMBI FWHM END 0.89