Exposure
ID
GRAVI.2025-10-27T07:17:58.413_1
Header ID
GRAVI.2025-10-27T07:17:58.413
Date updated
2025-10-27 07:30:58 UTC+0000
Release date
2026-10-27 07:30:58 UTC+0000
UTC Start
2025-10-27 07:17:58.413
UTC End
2025-10-27 07:21:58.413
MJD Start
60975.3041483
MJD End
60975.30692607778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004006
Ambient temperature (°C)
12.57
Seeing (arcsec)
0.88
Observation
ID
71016
Category
science
Program ID
116.28L4.001
Program Title
DETERMINING PRECISE DYNAMICAL MASSES OF A UNIQUE BE + SDO SYSTEM TO CALIBRATE THE PHYSICS OF BINARY MASS TRANSFER
Program Type
Normal
PI / COI
KLEMENT / RIVINIUS / DE MINK / LECHIEN
Target
ID
52700
Name
HD_41335
RA
91.053992
DEC
-6.70893
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.8110 89.9890 113.0000 113.0000
A0-J2 124.6100 125.2220 90.8000 90.9000
A0-K0 119.4420 120.2150 68.6440 68.9120
G1-J2 53.4700 53.7980 51.6000 52.0000
G1-K0 83.5420 83.7620 19.9710 20.5050
J2-K0 47.2210 47.1600 343.5660 343.9450
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28L4.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60975.3041483
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 41335
HIERARCH ESO INS SOBJ NAME HD_41335
RA 91.053992
DEC -6.70893
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
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
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 89.811
HIERARCH ESO ISS PBL12 END 89.989
HIERARCH ESO ISS PBLA12 START 113.0
HIERARCH ESO ISS PBLA12 END 113.0
HIERARCH ESO ISS PBL13 START 124.61
HIERARCH ESO ISS PBL13 END 125.222
HIERARCH ESO ISS PBLA13 START 90.8
HIERARCH ESO ISS PBLA13 END 90.9
HIERARCH ESO ISS PBL14 START 119.442
HIERARCH ESO ISS PBL14 END 120.215
HIERARCH ESO ISS PBLA14 START 68.644
HIERARCH ESO ISS PBLA14 END 68.912
HIERARCH ESO ISS PBL23 START 53.47
HIERARCH ESO ISS PBL23 END 53.798
HIERARCH ESO ISS PBLA23 START 51.6
HIERARCH ESO ISS PBLA23 END 52.0
HIERARCH ESO ISS PBL24 START 83.542
HIERARCH ESO ISS PBL24 END 83.762
HIERARCH ESO ISS PBLA24 START 19.971
HIERARCH ESO ISS PBLA24 END 20.505
HIERARCH ESO ISS PBL34 START 47.221
HIERARCH ESO ISS PBL34 END 47.16
HIERARCH ESO ISS PBLA34 START 343.566
HIERARCH ESO ISS PBLA34 END 343.945
HIERARCH ESO ISS AMBI TAU0 START 0.004174
HIERARCH ESO ISS AMBI TAU0 END 0.003838
HIERARCH ESO ISS AMBI TEMP 12.57
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.87