Exposure
ID
GRAVI.2025-07-24T05:51:25.715_1
Header ID
GRAVI.2025-07-24T05:51:25.715
Date updated
2025-07-24 06:05:53 UTC+0000
Release date
2026-07-24 06:05:52 UTC+0000
UTC Start
2025-07-24 05:51:25.715
UTC End
2025-07-24 05:53:49.715
MJD Start
60880.24404763
MJD End
60880.24571429667
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0062380000000000005
Ambient temperature (°C)
12.84
Seeing (arcsec)
0.32
Observation
ID
68952
Category
science
Program ID
115.282E.001
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 / KERVELLA / PIETRZYNSKI / GIEREN / MÉRAND / BRAS / BAILLEUL / LEFTLEY / AFANASIEV
Target
ID
51301
Name
eta_Aql
RA
298.116027
DEC
1.00561
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 78.2270 77.7190 116.8000 117.0000
A0-J2 119.4710 118.8510 92.3000 92.3000
A0-C1 19.5520 19.4250 116.7950 116.9710
G1-J2 58.1070 58.0640 58.5000 58.4000
G1-C1 58.6750 58.2940 296.7750 296.9510
J2-C1 101.9950 101.5180 267.7850 267.7610
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60880.24404763
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME eta Aql
HIERARCH ESO INS SOBJ NAME eta_Aql
RA 298.116027
DEC 1.00561
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 C1
EXPTIME 170.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 48
HIERARCH ESO ISS PBL12 START 78.227
HIERARCH ESO ISS PBL12 END 77.719
HIERARCH ESO ISS PBLA12 START 116.8
HIERARCH ESO ISS PBLA12 END 117.0
HIERARCH ESO ISS PBL13 START 119.471
HIERARCH ESO ISS PBL13 END 118.851
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 19.552
HIERARCH ESO ISS PBL14 END 19.425
HIERARCH ESO ISS PBLA14 START 116.795
HIERARCH ESO ISS PBLA14 END 116.971
HIERARCH ESO ISS PBL23 START 58.107
HIERARCH ESO ISS PBL23 END 58.064
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.4
HIERARCH ESO ISS PBL24 START 58.675
HIERARCH ESO ISS PBL24 END 58.294
HIERARCH ESO ISS PBLA24 START 296.775
HIERARCH ESO ISS PBLA24 END 296.951
HIERARCH ESO ISS PBL34 START 101.995
HIERARCH ESO ISS PBL34 END 101.518
HIERARCH ESO ISS PBLA34 START 267.785
HIERARCH ESO ISS PBLA34 END 267.761
HIERARCH ESO ISS AMBI TAU0 START 0.005551
HIERARCH ESO ISS AMBI TAU0 END 0.006925
HIERARCH ESO ISS AMBI TEMP 12.84
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.3