Exposure
ID
GRAVI.2025-07-24T06:00:55.739_1
Header ID
GRAVI.2025-07-24T06:00:55.739
Date updated
2025-07-24 06:10:51 UTC+0000
Release date
2026-07-24 06:10:50 UTC+0000
UTC Start
2025-07-24 06:00:55.739
UTC End
2025-07-24 06:03:19.739
MJD Start
60880.25064513
MJD End
60880.25231179666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.006224
Ambient temperature (°C)
12.8
Seeing (arcsec)
0.325
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 76.4900 75.9570 117.4000 117.6000
A0-J2 117.3220 116.6460 92.3000 92.3000
A0-C1 19.1180 18.9850 117.4090 117.6070
G1-J2 57.9380 57.8740 58.3000 58.3000
G1-C1 57.3720 56.9720 297.3880 297.5860
J2-C1 100.3340 99.8080 267.7040 267.6810
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 60880.25064513
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 76.49
HIERARCH ESO ISS PBL12 END 75.957
HIERARCH ESO ISS PBLA12 START 117.4
HIERARCH ESO ISS PBLA12 END 117.6
HIERARCH ESO ISS PBL13 START 117.322
HIERARCH ESO ISS PBL13 END 116.646
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 19.118
HIERARCH ESO ISS PBL14 END 18.985
HIERARCH ESO ISS PBLA14 START 117.409
HIERARCH ESO ISS PBLA14 END 117.607
HIERARCH ESO ISS PBL23 START 57.938
HIERARCH ESO ISS PBL23 END 57.874
HIERARCH ESO ISS PBLA23 START 58.3
HIERARCH ESO ISS PBLA23 END 58.3
HIERARCH ESO ISS PBL24 START 57.372
HIERARCH ESO ISS PBL24 END 56.972
HIERARCH ESO ISS PBLA24 START 297.388
HIERARCH ESO ISS PBLA24 END 297.586
HIERARCH ESO ISS PBL34 START 100.334
HIERARCH ESO ISS PBL34 END 99.808
HIERARCH ESO ISS PBLA34 START 267.704
HIERARCH ESO ISS PBLA34 END 267.681
HIERARCH ESO ISS AMBI TAU0 START 0.005853
HIERARCH ESO ISS AMBI TAU0 END 0.006595
HIERARCH ESO ISS AMBI TEMP 12.8
HIERARCH ESO ISS AMBI FWHM START 0.33
HIERARCH ESO ISS AMBI FWHM END 0.32