Exposure
ID
GRAVI.2021-05-30T07:15:38.599_2
Header ID
GRAVI.2021-05-30T07:15:38.599
Date updated
2021-05-30 07:30:22 UTC+0000
Release date
2022-05-30 07:30:22 UTC+0000
UTC Start
2021-05-30 07:15:38.599
UTC End
2021-05-30 07:20:58.599
MJD Start
59364.30253008
MJD End
59364.3062337837
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0045875
Ambient temperature (°C)
10.02
Seeing (arcsec)
0.66
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 55.2030 55.0490 33.6000 34.0000
U1-U3 99.4150 99.0580 39.9000 40.4000
U1-U4 123.9850 123.1490 68.8280 69.3730
U2-U3 44.9700 44.7640 47.7000 48.2000
U2-U4 85.1070 84.4880 90.8210 91.5220
U3-U4 60.6210 60.3310 121.2640 122.1260
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 59364.30253008
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 55.203
HIERARCH ESO ISS PBL12 END 55.049
HIERARCH ESO ISS PBLA12 START 33.6
HIERARCH ESO ISS PBLA12 END 34.0
HIERARCH ESO ISS PBL13 START 99.415
HIERARCH ESO ISS PBL13 END 99.058
HIERARCH ESO ISS PBLA13 START 39.9
HIERARCH ESO ISS PBLA13 END 40.4
HIERARCH ESO ISS PBL14 START 123.985
HIERARCH ESO ISS PBL14 END 123.149
HIERARCH ESO ISS PBLA14 START 68.828
HIERARCH ESO ISS PBLA14 END 69.373
HIERARCH ESO ISS PBL23 START 44.97
HIERARCH ESO ISS PBL23 END 44.764
HIERARCH ESO ISS PBLA23 START 47.7
HIERARCH ESO ISS PBLA23 END 48.2
HIERARCH ESO ISS PBL24 START 85.107
HIERARCH ESO ISS PBL24 END 84.488
HIERARCH ESO ISS PBLA24 START 90.821
HIERARCH ESO ISS PBLA24 END 91.522
HIERARCH ESO ISS PBL34 START 60.621
HIERARCH ESO ISS PBL34 END 60.331
HIERARCH ESO ISS PBLA34 START 121.264
HIERARCH ESO ISS PBLA34 END 122.126
HIERARCH ESO ISS AMBI TAU0 START 0.003983
HIERARCH ESO ISS AMBI TAU0 END 0.005192
HIERARCH ESO ISS AMBI TEMP 10.02
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.58
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371