Exposure
ID
GRAVI.2021-05-24T04:44:53.475_2
Header ID
GRAVI.2021-05-24T04:44:53.475
Date updated
2021-05-24 05:00:36 UTC+0000
Release date
2022-05-24 05:00:36 UTC+0000
UTC Start
2021-05-24 04:44:53.475
UTC End
2021-05-24 04:50:13.475
MJD Start
59358.19784115
MJD End
59358.2015448537
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.006094
Ambient temperature (°C)
12.76
Seeing (arcsec)
0.38
Observation
ID
47451
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
35588
Name
IRS16C
RA
266.4171125
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 56.4620 56.4800 14.5000 15.2000
U1-U3 101.9330 102.0080 20.4000 21.2000
U1-U4 125.8990 126.4230 47.3630 48.2760
U2-U3 46.1430 46.2100 27.6000 28.5000
U2-U4 84.2820 84.8770 68.7100 69.5610
U3-U4 58.0430 58.5280 100.2000 100.8090
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 59358.19784115
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 56.462
HIERARCH ESO ISS PBL12 END 56.48
HIERARCH ESO ISS PBLA12 START 14.5
HIERARCH ESO ISS PBLA12 END 15.2
HIERARCH ESO ISS PBL13 START 101.933
HIERARCH ESO ISS PBL13 END 102.008
HIERARCH ESO ISS PBLA13 START 20.4
HIERARCH ESO ISS PBLA13 END 21.2
HIERARCH ESO ISS PBL14 START 125.899
HIERARCH ESO ISS PBL14 END 126.423
HIERARCH ESO ISS PBLA14 START 47.363
HIERARCH ESO ISS PBLA14 END 48.276
HIERARCH ESO ISS PBL23 START 46.143
HIERARCH ESO ISS PBL23 END 46.21
HIERARCH ESO ISS PBLA23 START 27.6
HIERARCH ESO ISS PBLA23 END 28.5
HIERARCH ESO ISS PBL24 START 84.282
HIERARCH ESO ISS PBL24 END 84.877
HIERARCH ESO ISS PBLA24 START 68.71
HIERARCH ESO ISS PBLA24 END 69.561
HIERARCH ESO ISS PBL34 START 58.043
HIERARCH ESO ISS PBL34 END 58.528
HIERARCH ESO ISS PBLA34 START 100.2
HIERARCH ESO ISS PBLA34 END 100.809
HIERARCH ESO ISS AMBI TAU0 START 0.006852
HIERARCH ESO ISS AMBI TAU0 END 0.005336
HIERARCH ESO ISS AMBI TEMP 12.76
HIERARCH ESO ISS AMBI FWHM START 0.36
HIERARCH ESO ISS AMBI FWHM END 0.4
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371