Exposure
ID
GRAVI.2024-04-28T00:49:02.598_1
Header ID
GRAVI.2024-04-28T00:49:02.598
Date updated
2024-04-28 01:00:40 UTC+0000
Release date
2025-04-28 01:00:40 UTC+0000
UTC Start
2024-04-28 00:49:02.598
UTC End
2024-04-28 00:53:02.598
MJD Start
60428.03405785
MJD End
60428.0368356278
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0032705
Ambient temperature (°C)
17.39
Seeing (arcsec)
0.79
Observation
ID
58972
Category
science
Program ID
113.26EM.001
Program Title
DIRECT CONFIRMATION OF PROTOPLANET CANDIDATES IN TRANSITION DISKS
Program Type
Normal
PI / COI
BENISTY / BOURDAROT / GINSKI / KAMMERER / LACOUR / BAE / FACCHINI / TEAGUE
Target
ID
43656
Name
TW_Hya
RA
165.468514
DEC
-34.70479
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.1820 56.1410 22.9000 23.5000
U1-U3 101.9660 101.8880 29.2000 29.7000
U1-U4 130.2090 130.2030 56.7000 57.3230
U2-U3 46.5270 46.4950 36.8000 37.3000
U2-U4 89.1610 89.2560 77.2100 77.8450
U3-U4 61.6380 61.7830 106.5230 107.1030
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26EM.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60428.03405785
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME TW Hya
HIERARCH ESO INS SOBJ NAME TW_Hya
RA 165.468514
DEC -34.70479
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 263.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 56.182
HIERARCH ESO ISS PBL12 END 56.141
HIERARCH ESO ISS PBLA12 START 22.9
HIERARCH ESO ISS PBLA12 END 23.5
HIERARCH ESO ISS PBL13 START 101.966
HIERARCH ESO ISS PBL13 END 101.888
HIERARCH ESO ISS PBLA13 START 29.2
HIERARCH ESO ISS PBLA13 END 29.7
HIERARCH ESO ISS PBL14 START 130.209
HIERARCH ESO ISS PBL14 END 130.203
HIERARCH ESO ISS PBLA14 START 56.7
HIERARCH ESO ISS PBLA14 END 57.323
HIERARCH ESO ISS PBL23 START 46.527
HIERARCH ESO ISS PBL23 END 46.495
HIERARCH ESO ISS PBLA23 START 36.8
HIERARCH ESO ISS PBLA23 END 37.3
HIERARCH ESO ISS PBL24 START 89.161
HIERARCH ESO ISS PBL24 END 89.256
HIERARCH ESO ISS PBLA24 START 77.21
HIERARCH ESO ISS PBLA24 END 77.845
HIERARCH ESO ISS PBL34 START 61.638
HIERARCH ESO ISS PBL34 END 61.783
HIERARCH ESO ISS PBLA34 START 106.523
HIERARCH ESO ISS PBLA34 END 107.103
HIERARCH ESO ISS AMBI TAU0 START 0.003993
HIERARCH ESO ISS AMBI TAU0 END 0.002548
HIERARCH ESO ISS AMBI TEMP 17.39
HIERARCH ESO ISS AMBI FWHM START 0.73
HIERARCH ESO ISS AMBI FWHM END 0.85
HIERARCH ESO FT ROBJ NAME TW_Hya
HIERARCH ESO FT ROBJ ALPHA 110151.905
HIERARCH ESO FT ROBJ DELTA -344217.033