Exposure
ID
GRAVI.2021-05-31T07:18:23.162_2
Header ID
GRAVI.2021-05-31T07:18:23.162
Date updated
2021-05-31 07:30:59 UTC+0000
Release date
2022-05-31 07:30:59 UTC+0000
UTC Start
2021-05-31 07:18:23.162
UTC End
2021-05-31 07:23:43.162
MJD Start
59365.30443475
MJD End
59365.3081384537
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0037925
Ambient temperature (°C)
10.04
Seeing (arcsec)
0.94
Observation
ID
47463
Category
science
Program ID
105.20B2.002
Program Title
THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ PERRIN/ STRAUBMEIER/ ROUSSELET-PERRAUT/ GARCIA/ BRANDNER/ GENZEL/ ECKART/ PAUMARD/ CL'ENET/ GAO/ HABIBI/ HORROBIN/ KERVELLA/ OTT/ WIDMANN/ VON FELLENBERG/ HENNING/ PFUHL/ WAISBERG/ DEXTER/ DE ZEEUW/ AMORIM
Target
ID
35598
Name
IRS16C
RA
266.417116666667
DEC
-29.0076491944444
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.0220 54.8560 34.1000 34.5000
U1-U3 98.9950 98.6080 40.4000 40.9000
U1-U4 123.0000 122.0950 69.4640 70.0050
U2-U3 44.7270 44.5040 48.3000 48.7000
U2-U4 84.3780 83.7080 91.6420 92.3550
U3-U4 60.2790 59.9660 122.2740 123.1630
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59365.30443475
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.4168
DEC -29.00714
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
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 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 55.022
HIERARCH ESO ISS PBL12 END 54.856
HIERARCH ESO ISS PBLA12 START 34.1
HIERARCH ESO ISS PBLA12 END 34.5
HIERARCH ESO ISS PBL13 START 98.995
HIERARCH ESO ISS PBL13 END 98.608
HIERARCH ESO ISS PBLA13 START 40.4
HIERARCH ESO ISS PBLA13 END 40.9
HIERARCH ESO ISS PBL14 START 123.0
HIERARCH ESO ISS PBL14 END 122.095
HIERARCH ESO ISS PBLA14 START 69.464
HIERARCH ESO ISS PBLA14 END 70.005
HIERARCH ESO ISS PBL23 START 44.727
HIERARCH ESO ISS PBL23 END 44.504
HIERARCH ESO ISS PBLA23 START 48.3
HIERARCH ESO ISS PBLA23 END 48.7
HIERARCH ESO ISS PBL24 START 84.378
HIERARCH ESO ISS PBL24 END 83.708
HIERARCH ESO ISS PBLA24 START 91.642
HIERARCH ESO ISS PBLA24 END 92.355
HIERARCH ESO ISS PBL34 START 60.279
HIERARCH ESO ISS PBL34 END 59.966
HIERARCH ESO ISS PBLA34 START 122.274
HIERARCH ESO ISS PBLA34 END 123.163
HIERARCH ESO ISS AMBI TAU0 START 0.003859
HIERARCH ESO ISS AMBI TAU0 END 0.003726
HIERARCH ESO ISS AMBI TEMP 10.04
HIERARCH ESO ISS AMBI FWHM START 1.05
HIERARCH ESO ISS AMBI FWHM END 0.83
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371