Exposure
ID
GRAVI.2025-07-24T05:57:49.731_1
Header ID
GRAVI.2025-07-24T05:57:49.731
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 05:57:49.731
UTC End
2025-07-24 06:00:13.731
MJD Start
60880.24849226
MJD End
60880.25015892666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.005962
Ambient temperature (°C)
12.79
Seeing (arcsec)
0.335
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 77.0640 76.5370 117.2000 117.4000
A0-J2 118.0420 117.3820 92.3000 92.3000
A0-C1 19.2620 19.1300 117.2050 117.3950
G1-J2 58.0010 57.9430 58.4000 58.3000
G1-C1 57.8030 57.4070 297.1840 297.3740
J2-C1 100.8920 100.3800 267.7330 267.7080
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 60880.24849226
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 77.064
HIERARCH ESO ISS PBL12 END 76.537
HIERARCH ESO ISS PBLA12 START 117.2
HIERARCH ESO ISS PBLA12 END 117.4
HIERARCH ESO ISS PBL13 START 118.042
HIERARCH ESO ISS PBL13 END 117.382
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 19.262
HIERARCH ESO ISS PBL14 END 19.13
HIERARCH ESO ISS PBLA14 START 117.205
HIERARCH ESO ISS PBLA14 END 117.395
HIERARCH ESO ISS PBL23 START 58.001
HIERARCH ESO ISS PBL23 END 57.943
HIERARCH ESO ISS PBLA23 START 58.4
HIERARCH ESO ISS PBLA23 END 58.3
HIERARCH ESO ISS PBL24 START 57.803
HIERARCH ESO ISS PBL24 END 57.407
HIERARCH ESO ISS PBLA24 START 297.184
HIERARCH ESO ISS PBLA24 END 297.374
HIERARCH ESO ISS PBL34 START 100.892
HIERARCH ESO ISS PBL34 END 100.38
HIERARCH ESO ISS PBLA34 START 267.733
HIERARCH ESO ISS PBLA34 END 267.708
HIERARCH ESO ISS AMBI TAU0 START 0.005962
HIERARCH ESO ISS AMBI TAU0 END 0.005962
HIERARCH ESO ISS AMBI TEMP 12.79
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.33