Exposure
ID
GRAVI.2025-04-09T09:25:26.180_1
Header ID
GRAVI.2025-04-09T09:25:26.180
Date updated
2025-04-09 09:35:40 UTC+0000
Release date
2025-04-09 09:25:26 UTC+0000
UTC Start
2025-04-09 09:25:26.180
UTC End
2025-04-09 09:28:06.180
MJD Start
60774.39266412
MJD End
60774.39451597186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004101
Ambient temperature (°C)
14.01
Seeing (arcsec)
1.12
Observation
ID
66159
Category
calibrator
Program ID
115.28E1.001
Program Title
A CLOSER LOOK AT THE ENVIRONMENTS OF LATE-TYPE CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
DESHMUKH / SANA / SANDER / SHENAR / MÉRAND / FROST / LEFEVER
Target
ID
49254
Name
HD164997
RA
271.310245
DEC
-32.26051
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.2700 56.2440 24.9000 25.3000
U1-U3 102.0210 101.9680 31.3000 31.6000
U1-U4 130.1560 130.1160 59.1410 59.5180
U2-U3 46.5110 46.4860 38.9000 39.3000
U2-U4 89.4070 89.4230 79.8650 80.2540
U3-U4 62.2340 62.2860 109.1780 109.5490
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28E1.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60774.39266412
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 164997
HIERARCH ESO INS SOBJ NAME HD164997
RA 271.310245
DEC -32.26051
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 56.27
HIERARCH ESO ISS PBL12 END 56.244
HIERARCH ESO ISS PBLA12 START 24.9
HIERARCH ESO ISS PBLA12 END 25.3
HIERARCH ESO ISS PBL13 START 102.021
HIERARCH ESO ISS PBL13 END 101.968
HIERARCH ESO ISS PBLA13 START 31.3
HIERARCH ESO ISS PBLA13 END 31.6
HIERARCH ESO ISS PBL14 START 130.156
HIERARCH ESO ISS PBL14 END 130.116
HIERARCH ESO ISS PBLA14 START 59.141
HIERARCH ESO ISS PBLA14 END 59.518
HIERARCH ESO ISS PBL23 START 46.511
HIERARCH ESO ISS PBL23 END 46.486
HIERARCH ESO ISS PBLA23 START 38.9
HIERARCH ESO ISS PBLA23 END 39.3
HIERARCH ESO ISS PBL24 START 89.407
HIERARCH ESO ISS PBL24 END 89.423
HIERARCH ESO ISS PBLA24 START 79.865
HIERARCH ESO ISS PBLA24 END 80.254
HIERARCH ESO ISS PBL34 START 62.234
HIERARCH ESO ISS PBL34 END 62.286
HIERARCH ESO ISS PBLA34 START 109.178
HIERARCH ESO ISS PBLA34 END 109.549
HIERARCH ESO ISS AMBI TAU0 START 0.004101
HIERARCH ESO ISS AMBI TAU0 END 0.004101
HIERARCH ESO ISS AMBI TEMP 14.01
HIERARCH ESO ISS AMBI FWHM START 1.12
HIERARCH ESO ISS AMBI FWHM END 1.12