Exposure
ID
GRAVI.2021-05-30T08:01:26.714_2
Header ID
GRAVI.2021-05-30T08:01:26.714
Date updated
2021-05-30 08:20:22 UTC+0000
Release date
2022-05-30 08:20:22 UTC+0000
UTC Start
2021-05-30 08:01:26.714
UTC End
2021-05-30 08:06:46.714
MJD Start
59364.33433697
MJD End
59364.3380406737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0048375
Ambient temperature (°C)
10.12
Seeing (arcsec)
0.76
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 53.6770 53.4360 36.9000 37.2000
U1-U3 95.8780 95.3240 43.2000 43.5000
U1-U4 115.7320 114.4530 73.0470 73.5530
U2-U3 42.9300 42.6120 51.0000 51.4000
U2-U4 79.0350 78.1060 96.6800 97.4610
U3-U4 57.8370 57.4280 128.7290 129.7580
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 59364.33433697
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.41672
DEC -29.00717
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 53.677
HIERARCH ESO ISS PBL12 END 53.436
HIERARCH ESO ISS PBLA12 START 36.9
HIERARCH ESO ISS PBLA12 END 37.2
HIERARCH ESO ISS PBL13 START 95.878
HIERARCH ESO ISS PBL13 END 95.324
HIERARCH ESO ISS PBLA13 START 43.2
HIERARCH ESO ISS PBLA13 END 43.5
HIERARCH ESO ISS PBL14 START 115.732
HIERARCH ESO ISS PBL14 END 114.453
HIERARCH ESO ISS PBLA14 START 73.047
HIERARCH ESO ISS PBLA14 END 73.553
HIERARCH ESO ISS PBL23 START 42.93
HIERARCH ESO ISS PBL23 END 42.612
HIERARCH ESO ISS PBLA23 START 51.0
HIERARCH ESO ISS PBLA23 END 51.4
HIERARCH ESO ISS PBL24 START 79.035
HIERARCH ESO ISS PBL24 END 78.106
HIERARCH ESO ISS PBLA24 START 96.68
HIERARCH ESO ISS PBLA24 END 97.461
HIERARCH ESO ISS PBL34 START 57.837
HIERARCH ESO ISS PBL34 END 57.428
HIERARCH ESO ISS PBLA34 START 128.729
HIERARCH ESO ISS PBLA34 END 129.758
HIERARCH ESO ISS AMBI TAU0 START 0.005578
HIERARCH ESO ISS AMBI TAU0 END 0.004097
HIERARCH ESO ISS AMBI TEMP 10.12
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.86
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371