Exposure
ID
PIONI.2025-07-22T03:34:38.527_1
Header ID
PIONI.2025-07-22T03:34:38.527
Date updated
2025-07-22 11:56:18 UTC+0000
Release date
2025-07-22 03:34:38 UTC+0000
UTC Start
2025-07-22 03:34:38.527
UTC End
2025-07-22 03:35:16.927
MJD Start
60878.1490570214
MJD End
60878.14950146584
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.007274
Ambient temperature (°C)
14.02
Seeing (arcsec)
0.845
Observation
ID
68886
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
51250
Name
HD 166235
RA
272.41974
DEC
0.82288
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 84.7320 84.6310 114.9000 114.9000
A0-J2 126.4790 126.3850 92.5000 92.5000
A0-K0 127.8920 127.8750 72.7650 72.7590
G1-J2 57.9910 58.0060 58.6000 58.6000
G1-K0 86.3540 86.4030 31.6180 31.6680
J2-K0 43.5110 43.5040 354.4370 354.5320
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 60878.1490570214
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 166235
RA 272.41974
DEC 0.82288
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 84.732
HIERARCH ESO ISS PBL12 END 84.631
HIERARCH ESO ISS PBLA12 START 114.9
HIERARCH ESO ISS PBLA12 END 114.9
HIERARCH ESO ISS PBL13 START 126.479
HIERARCH ESO ISS PBL13 END 126.385
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 127.892
HIERARCH ESO ISS PBL14 END 127.875
HIERARCH ESO ISS PBLA14 START 72.765
HIERARCH ESO ISS PBLA14 END 72.759
HIERARCH ESO ISS PBL23 START 57.991
HIERARCH ESO ISS PBL23 END 58.006
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 86.354
HIERARCH ESO ISS PBL24 END 86.403
HIERARCH ESO ISS PBLA24 START 31.618
HIERARCH ESO ISS PBLA24 END 31.668
HIERARCH ESO ISS PBL34 START 43.511
HIERARCH ESO ISS PBL34 END 43.504
HIERARCH ESO ISS PBLA34 START 354.437
HIERARCH ESO ISS PBLA34 END 354.532
HIERARCH ESO ISS AMBI TAU0 START 0.007274
HIERARCH ESO ISS AMBI TAU0 END 0.007274
HIERARCH ESO ISS AMBI TEMP 14.02
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.88