Exposure
ID
GRAVI.2021-05-24T05:44:59.626_1
Header ID
GRAVI.2021-05-24T05:44:59.626
Date updated
2021-05-24 06:00:33 UTC+0000
Release date
2022-05-24 06:00:33 UTC+0000
UTC Start
2021-05-24 05:44:59.626
UTC End
2021-05-24 05:50:19.626
MJD Start
59358.23957901
MJD End
59358.2432827137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.005033
Ambient temperature (°C)
12.27
Seeing (arcsec)
0.465
Observation
ID
47457
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
35595
Name
S2
RA
266.416898
DEC
-29.00719
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5540 56.5460 22.1000 22.8000
U1-U3 102.4330 102.4320 28.3000 29.0000
U1-U4 129.8210 129.9830 56.0880 56.8320
U2-U3 46.6270 46.6380 35.9000 36.7000
U2-U4 88.7720 88.9830 76.9660 77.6940
U3-U4 61.7200 61.9090 106.6960 107.3380
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 59358.23957901
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416898
DEC -29.00719
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 56.554
HIERARCH ESO ISS PBL12 END 56.546
HIERARCH ESO ISS PBLA12 START 22.1
HIERARCH ESO ISS PBLA12 END 22.8
HIERARCH ESO ISS PBL13 START 102.433
HIERARCH ESO ISS PBL13 END 102.432
HIERARCH ESO ISS PBLA13 START 28.3
HIERARCH ESO ISS PBLA13 END 29.0
HIERARCH ESO ISS PBL14 START 129.821
HIERARCH ESO ISS PBL14 END 129.983
HIERARCH ESO ISS PBLA14 START 56.088
HIERARCH ESO ISS PBLA14 END 56.832
HIERARCH ESO ISS PBL23 START 46.627
HIERARCH ESO ISS PBL23 END 46.638
HIERARCH ESO ISS PBLA23 START 35.9
HIERARCH ESO ISS PBLA23 END 36.7
HIERARCH ESO ISS PBL24 START 88.772
HIERARCH ESO ISS PBL24 END 88.983
HIERARCH ESO ISS PBLA24 START 76.966
HIERARCH ESO ISS PBLA24 END 77.694
HIERARCH ESO ISS PBL34 START 61.72
HIERARCH ESO ISS PBL34 END 61.909
HIERARCH ESO ISS PBLA34 START 106.696
HIERARCH ESO ISS PBLA34 END 107.338
HIERARCH ESO ISS AMBI TAU0 START 0.005898
HIERARCH ESO ISS AMBI TAU0 END 0.004168
HIERARCH ESO ISS AMBI TEMP 12.27
HIERARCH ESO ISS AMBI FWHM START 0.4
HIERARCH ESO ISS AMBI FWHM END 0.53
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371