Exposure
ID
PIONI.2025-09-21T23:57:34.532_1
Header ID
PIONI.2025-09-21T23:57:34.532
Date updated
2025-09-22 00:05:58 UTC+0000
Release date
2025-09-21 23:57:34 UTC+0000
UTC Start
2025-09-21 23:57:34.532
UTC End
2025-09-21 23:58:12.932
MJD Start
60939.9983163383
MJD End
60939.99876078274
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004405
Ambient temperature (°C)
11.73
Seeing (arcsec)
0.735
Observation
ID
70482
Category
calibrator
Program ID
115.283B.001
Program Title
WHAT MAKES THE SYMBIOTIC GIANT IN FG SER BREATHE?
Program Type
Normal
PI / COI
MERC / BOFFIN
Target
ID
52265
Name
HD 166562
RA
272.817293
DEC
-0.65932
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 81.6140 81.4920 116.6000 116.6000
A0-J2 122.8570 122.7160 92.9000 92.9000
A0-K0 126.5440 126.4790 72.7120 72.7050
G1-J2 58.2210 58.2180 58.6000 58.6000
G1-K0 88.2470 88.2850 32.8320 32.8730
J2-K0 43.8980 43.8940 357.5520 357.6500
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.283B.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60939.9983163383
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 166562
RA 272.817293
DEC -0.65932
HIERARCH ESO INS OPTI2 NAME GRISM
HIERARCH ESO INS OPTI2 ID GRISM
HIERARCH ESO INS FILT1 NAME H
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 K0
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 81.614
HIERARCH ESO ISS PBL12 END 81.492
HIERARCH ESO ISS PBLA12 START 116.6
HIERARCH ESO ISS PBLA12 END 116.6
HIERARCH ESO ISS PBL13 START 122.857
HIERARCH ESO ISS PBL13 END 122.716
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 126.544
HIERARCH ESO ISS PBL14 END 126.479
HIERARCH ESO ISS PBLA14 START 72.712
HIERARCH ESO ISS PBLA14 END 72.705
HIERARCH ESO ISS PBL23 START 58.221
HIERARCH ESO ISS PBL23 END 58.218
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 88.247
HIERARCH ESO ISS PBL24 END 88.285
HIERARCH ESO ISS PBLA24 START 32.832
HIERARCH ESO ISS PBLA24 END 32.873
HIERARCH ESO ISS PBL34 START 43.898
HIERARCH ESO ISS PBL34 END 43.894
HIERARCH ESO ISS PBLA34 START 357.552
HIERARCH ESO ISS PBLA34 END 357.65
HIERARCH ESO ISS AMBI TAU0 START 0.004405
HIERARCH ESO ISS AMBI TAU0 END 0.004405
HIERARCH ESO ISS AMBI TEMP 11.73
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.77