Exposure
ID
PIONI.2025-07-22T04:12:59.568_1
Header ID
PIONI.2025-07-22T04:12:59.568
Date updated
2025-07-22 05:30:45 UTC+0000
Release date
2025-07-22 04:12:59 UTC+0000
UTC Start
2025-07-22 04:12:59.569
UTC End
2025-07-22 04:13:37.969
MJD Start
60878.1756894519
MJD End
60878.17613389634
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.00853
Ambient temperature (°C)
14.71
Seeing (arcsec)
0.7
Observation
ID
68893
Category
calibrator
Program ID
115.28F2.002
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51256
Name
HD170785
RA
277.803513
DEC
-0.44419
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 82.7750 82.6590 116.1000 116.1000
A0-J2 124.2170 124.0910 92.8000 92.8000
A0-K0 127.1450 127.0960 72.7420 72.7370
G1-J2 58.2210 58.2240 58.6000 58.6000
G1-K0 87.7680 87.8090 32.4220 32.4660
J2-K0 43.8540 43.8490 356.5330 356.6310
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60878.1756894519
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170785
RA 277.803513
DEC -0.44419
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 82.775
HIERARCH ESO ISS PBL12 END 82.659
HIERARCH ESO ISS PBLA12 START 116.1
HIERARCH ESO ISS PBLA12 END 116.1
HIERARCH ESO ISS PBL13 START 124.217
HIERARCH ESO ISS PBL13 END 124.091
HIERARCH ESO ISS PBLA13 START 92.8
HIERARCH ESO ISS PBLA13 END 92.8
HIERARCH ESO ISS PBL14 START 127.145
HIERARCH ESO ISS PBL14 END 127.096
HIERARCH ESO ISS PBLA14 START 72.742
HIERARCH ESO ISS PBLA14 END 72.737
HIERARCH ESO ISS PBL23 START 58.221
HIERARCH ESO ISS PBL23 END 58.224
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 87.768
HIERARCH ESO ISS PBL24 END 87.809
HIERARCH ESO ISS PBLA24 START 32.422
HIERARCH ESO ISS PBLA24 END 32.466
HIERARCH ESO ISS PBL34 START 43.854
HIERARCH ESO ISS PBL34 END 43.849
HIERARCH ESO ISS PBLA34 START 356.533
HIERARCH ESO ISS PBLA34 END 356.631
HIERARCH ESO ISS AMBI TAU0 START 0.008082
HIERARCH ESO ISS AMBI TAU0 END 0.008978
HIERARCH ESO ISS AMBI TEMP 14.71
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.68