Exposure
ID
GRAVI.2025-07-24T06:07:22.755_1
Header ID
GRAVI.2025-07-24T06:07:22.755
Date updated
2025-07-24 06:20:46 UTC+0000
Release date
2026-07-24 06:20:46 UTC+0000
UTC Start
2025-07-24 06:07:22.755
UTC End
2025-07-24 06:09:46.755
MJD Start
60880.25512448
MJD End
60880.25679114666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0064235
Ambient temperature (°C)
12.79
Seeing (arcsec)
0.29000000000000004
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 75.2530 74.7020 117.9000 118.1000
A0-J2 115.7440 115.0280 92.3000 92.3000
A0-C1 18.8090 18.6710 117.8680 118.0810
G1-J2 57.7810 57.7030 58.2000 58.1000
G1-C1 56.4440 56.0310 297.8470 298.0590
J2-C1 99.1040 98.5440 267.6450 267.6210
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 60880.25512448
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 75.253
HIERARCH ESO ISS PBL12 END 74.702
HIERARCH ESO ISS PBLA12 START 117.9
HIERARCH ESO ISS PBLA12 END 118.1
HIERARCH ESO ISS PBL13 START 115.744
HIERARCH ESO ISS PBL13 END 115.028
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 18.809
HIERARCH ESO ISS PBL14 END 18.671
HIERARCH ESO ISS PBLA14 START 117.868
HIERARCH ESO ISS PBLA14 END 118.081
HIERARCH ESO ISS PBL23 START 57.781
HIERARCH ESO ISS PBL23 END 57.703
HIERARCH ESO ISS PBLA23 START 58.2
HIERARCH ESO ISS PBLA23 END 58.1
HIERARCH ESO ISS PBL24 START 56.444
HIERARCH ESO ISS PBL24 END 56.031
HIERARCH ESO ISS PBLA24 START 297.847
HIERARCH ESO ISS PBLA24 END 298.059
HIERARCH ESO ISS PBL34 START 99.104
HIERARCH ESO ISS PBL34 END 98.544
HIERARCH ESO ISS PBLA34 START 267.645
HIERARCH ESO ISS PBLA34 END 267.621
HIERARCH ESO ISS AMBI TAU0 START 0.006051
HIERARCH ESO ISS AMBI TAU0 END 0.006796
HIERARCH ESO ISS AMBI TEMP 12.79
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.28