Exposure
ID
PIONI.2025-07-25T04:08:09.173_1
Header ID
PIONI.2025-07-25T04:08:09.173
Date updated
2025-07-25 04:15:50 UTC+0000
Release date
2025-07-25 04:08:09 UTC+0000
UTC Start
2025-07-25 04:08:09.173
UTC End
2025-07-25 04:08:34.773
MJD Start
60881.172328386
MJD End
60881.172624682295
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0028775
Ambient temperature (°C)
12.56
Seeing (arcsec)
0.5
Observation
ID
68967
Category
calibrator
Program ID
115.27VC.001
Program Title
UNVEILING THE MASS-LOSS PROCESS OF RED SUPERGIANTS: IMAGING THE RED SUPERGIANT VX SAGITARII WITH VLTI AND ALMA
Program Type
Normal
PI / COI
JADLOVSKY / WITTKOWSKI / CHIAVASSA / KRAVCHENKO / KRTICKA / PALADINI / HÖFNER / FREYTAG / HUMPHREYS
Target
ID
51192
Name
HD 165634
RA
272.019636
DEC
-28.45727
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.0900 25.0860 153.9000 154.0000
A0-D0 30.0210 29.9960 80.9000 81.0000
A0-C1 21.8520 21.8420 127.9430 128.0360
B2-D0 33.0150 33.0050 34.3000 34.3000
B2-C1 10.9980 10.9950 34.2490 34.2950
D0-C1 22.0170 22.0100 214.3120 214.3580
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VC.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60881.172328386
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.019636
DEC -28.45727
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.09
HIERARCH ESO ISS PBL12 END 25.086
HIERARCH ESO ISS PBLA12 START 153.9
HIERARCH ESO ISS PBLA12 END 154.0
HIERARCH ESO ISS PBL13 START 30.021
HIERARCH ESO ISS PBL13 END 29.996
HIERARCH ESO ISS PBLA13 START 80.9
HIERARCH ESO ISS PBLA13 END 81.0
HIERARCH ESO ISS PBL14 START 21.852
HIERARCH ESO ISS PBL14 END 21.842
HIERARCH ESO ISS PBLA14 START 127.943
HIERARCH ESO ISS PBLA14 END 128.036
HIERARCH ESO ISS PBL23 START 33.015
HIERARCH ESO ISS PBL23 END 33.005
HIERARCH ESO ISS PBLA23 START 34.3
HIERARCH ESO ISS PBLA23 END 34.3
HIERARCH ESO ISS PBL24 START 10.998
HIERARCH ESO ISS PBL24 END 10.995
HIERARCH ESO ISS PBLA24 START 34.249
HIERARCH ESO ISS PBLA24 END 34.295
HIERARCH ESO ISS PBL34 START 22.017
HIERARCH ESO ISS PBL34 END 22.01
HIERARCH ESO ISS PBLA34 START 214.312
HIERARCH ESO ISS PBLA34 END 214.358
HIERARCH ESO ISS AMBI TAU0 START 0.002778
HIERARCH ESO ISS AMBI TAU0 END 0.002977
HIERARCH ESO ISS AMBI TEMP 12.56
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.51