Exposure
ID
GRAVI.2025-06-23T03:09:24.518_1
Header ID
GRAVI.2025-06-23T03:09:24.518
Date updated
2025-06-23 03:20:39 UTC+0000
Release date
2025-06-23 03:09:24 UTC+0000
UTC Start
2025-06-23 03:09:24.518
UTC End
2025-06-23 03:12:04.518
MJD Start
60849.13153377
MJD End
60849.133385621855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0038485000000000004
Ambient temperature (°C)
11.83
Seeing (arcsec)
0.46499999999999997
Observation
ID
68167
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
50672
Name
HD157919
RA
261.838756
DEC
-29.86782
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 66.8410 66.9960 264.7000 265.0000
K0-D0 94.7140 94.8670 243.9000 244.3000
K0-J3 55.5890 55.6520 327.3280 327.5980
G2-D0 39.9680 39.9740 207.6000 208.0000
G2-J3 64.3940 64.4170 34.5720 34.9720
D0-J3 104.1790 104.2080 31.9020 32.2970
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 60849.13153377
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.838756
DEC -29.86782
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 66.841
HIERARCH ESO ISS PBL12 END 66.996
HIERARCH ESO ISS PBLA12 START 264.7
HIERARCH ESO ISS PBLA12 END 265.0
HIERARCH ESO ISS PBL13 START 94.714
HIERARCH ESO ISS PBL13 END 94.867
HIERARCH ESO ISS PBLA13 START 243.9
HIERARCH ESO ISS PBLA13 END 244.3
HIERARCH ESO ISS PBL14 START 55.589
HIERARCH ESO ISS PBL14 END 55.652
HIERARCH ESO ISS PBLA14 START 327.328
HIERARCH ESO ISS PBLA14 END 327.598
HIERARCH ESO ISS PBL23 START 39.968
HIERARCH ESO ISS PBL23 END 39.974
HIERARCH ESO ISS PBLA23 START 207.6
HIERARCH ESO ISS PBLA23 END 208.0
HIERARCH ESO ISS PBL24 START 64.394
HIERARCH ESO ISS PBL24 END 64.417
HIERARCH ESO ISS PBLA24 START 34.572
HIERARCH ESO ISS PBLA24 END 34.972
HIERARCH ESO ISS PBL34 START 104.179
HIERARCH ESO ISS PBL34 END 104.208
HIERARCH ESO ISS PBLA34 START 31.902
HIERARCH ESO ISS PBLA34 END 32.297
HIERARCH ESO ISS AMBI TAU0 START 0.004087
HIERARCH ESO ISS AMBI TAU0 END 0.00361
HIERARCH ESO ISS AMBI TEMP 11.83
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.46