Exposure
ID
GRAVI.2021-05-31T07:55:23.255_2
Header ID
GRAVI.2021-05-31T07:55:23.255
Date updated
2021-05-31 08:11:12 UTC+0000
Release date
2022-05-31 08:11:12 UTC+0000
UTC Start
2021-05-31 07:55:23.255
UTC End
2021-05-31 08:00:43.255
MJD Start
59365.33013027
MJD End
59365.3338339737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0025805
Ambient temperature (°C)
10.28
Seeing (arcsec)
0.84
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 53.7610 53.5250 36.7000 37.1000
U1-U3 96.0730 95.5290 43.0000 43.4000
U1-U4 116.1850 114.9260 72.8600 73.3680
U2-U3 43.0420 42.7290 50.9000 51.3000
U2-U4 79.3650 78.4490 96.3970 97.1740
U3-U4 57.9840 57.5790 128.3580 129.3790
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 59365.33013027
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 53.761
HIERARCH ESO ISS PBL12 END 53.525
HIERARCH ESO ISS PBLA12 START 36.7
HIERARCH ESO ISS PBLA12 END 37.1
HIERARCH ESO ISS PBL13 START 96.073
HIERARCH ESO ISS PBL13 END 95.529
HIERARCH ESO ISS PBLA13 START 43.0
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 116.185
HIERARCH ESO ISS PBL14 END 114.926
HIERARCH ESO ISS PBLA14 START 72.86
HIERARCH ESO ISS PBLA14 END 73.368
HIERARCH ESO ISS PBL23 START 43.042
HIERARCH ESO ISS PBL23 END 42.729
HIERARCH ESO ISS PBLA23 START 50.9
HIERARCH ESO ISS PBLA23 END 51.3
HIERARCH ESO ISS PBL24 START 79.365
HIERARCH ESO ISS PBL24 END 78.449
HIERARCH ESO ISS PBLA24 START 96.397
HIERARCH ESO ISS PBLA24 END 97.174
HIERARCH ESO ISS PBL34 START 57.984
HIERARCH ESO ISS PBL34 END 57.579
HIERARCH ESO ISS PBLA34 START 128.358
HIERARCH ESO ISS PBLA34 END 129.379
HIERARCH ESO ISS AMBI TAU0 START 0.002497
HIERARCH ESO ISS AMBI TAU0 END 0.002664
HIERARCH ESO ISS AMBI TEMP 10.28
HIERARCH ESO ISS AMBI FWHM START 0.87
HIERARCH ESO ISS AMBI FWHM END 0.81
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371