Exposure
ID
GRAVI.2025-07-24T04:25:28.496_1
Header ID
GRAVI.2025-07-24T04:25:28.496
Date updated
2025-07-24 04:35:49 UTC+0000
Release date
2025-07-24 04:25:28 UTC+0000
UTC Start
2025-07-24 04:25:28.496
UTC End
2025-07-24 04:28:08.496
MJD Start
60880.18435759
MJD End
60880.186209441854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0028459999999999996
Ambient temperature (°C)
12.75
Seeing (arcsec)
0.5
Observation
ID
68945
Category
calibrator
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
51297
Name
HD156227
RA
259.175819
DEC
-6.24502
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 68.3430 67.7450 128.8000 129.3000
A0-J2 100.3340 99.2870 98.5000 98.6000
A0-C1 17.0820 16.9330 128.8240 129.3140
G1-J2 53.8650 53.6180 58.6000 58.5000
G1-C1 51.2610 50.8120 308.8000 309.2900
J2-C1 86.0280 85.1620 272.7140 272.8240
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60880.18435759
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 156227
HIERARCH ESO INS SOBJ NAME HD156227
RA 259.175819
DEC -6.24502
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 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 68.343
HIERARCH ESO ISS PBL12 END 67.745
HIERARCH ESO ISS PBLA12 START 128.8
HIERARCH ESO ISS PBLA12 END 129.3
HIERARCH ESO ISS PBL13 START 100.334
HIERARCH ESO ISS PBL13 END 99.287
HIERARCH ESO ISS PBLA13 START 98.5
HIERARCH ESO ISS PBLA13 END 98.6
HIERARCH ESO ISS PBL14 START 17.082
HIERARCH ESO ISS PBL14 END 16.933
HIERARCH ESO ISS PBLA14 START 128.824
HIERARCH ESO ISS PBLA14 END 129.314
HIERARCH ESO ISS PBL23 START 53.865
HIERARCH ESO ISS PBL23 END 53.618
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 51.261
HIERARCH ESO ISS PBL24 END 50.812
HIERARCH ESO ISS PBLA24 START 308.8
HIERARCH ESO ISS PBLA24 END 309.29
HIERARCH ESO ISS PBL34 START 86.028
HIERARCH ESO ISS PBL34 END 85.162
HIERARCH ESO ISS PBLA34 START 272.714
HIERARCH ESO ISS PBLA34 END 272.824
HIERARCH ESO ISS AMBI TAU0 START 0.002877
HIERARCH ESO ISS AMBI TAU0 END 0.002815
HIERARCH ESO ISS AMBI TEMP 12.75
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.5