Exposure
ID
GRAVI.2021-05-30T07:47:05.678_2
Header ID
GRAVI.2021-05-30T07:47:05.678
Date updated
2021-05-30 08:00:36 UTC+0000
Release date
2021-05-30 07:47:05 UTC+0000
UTC Start
2021-05-30 07:47:05.678
UTC End
2021-05-30 07:52:25.678
MJD Start
59364.32437127
MJD End
59364.3280749737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0063025
Ambient temperature (°C)
9.97
Seeing (arcsec)
0.535
Observation
ID
47461
Category
calibrator
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 54.2280 54.0170 35.9000 36.3000
U1-U3 97.1520 96.6640 42.2000 42.6000
U1-U4 118.6920 117.5560 71.7630 72.2770
U2-U3 43.6630 43.3820 50.1000 50.5000
U2-U4 81.2000 80.3670 94.7820 95.5280
U3-U4 58.8100 58.4320 126.2540 127.2220
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 59364.32437127
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
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 54.228
HIERARCH ESO ISS PBL12 END 54.017
HIERARCH ESO ISS PBLA12 START 35.9
HIERARCH ESO ISS PBLA12 END 36.3
HIERARCH ESO ISS PBL13 START 97.152
HIERARCH ESO ISS PBL13 END 96.664
HIERARCH ESO ISS PBLA13 START 42.2
HIERARCH ESO ISS PBLA13 END 42.6
HIERARCH ESO ISS PBL14 START 118.692
HIERARCH ESO ISS PBL14 END 117.556
HIERARCH ESO ISS PBLA14 START 71.763
HIERARCH ESO ISS PBLA14 END 72.277
HIERARCH ESO ISS PBL23 START 43.663
HIERARCH ESO ISS PBL23 END 43.382
HIERARCH ESO ISS PBLA23 START 50.1
HIERARCH ESO ISS PBLA23 END 50.5
HIERARCH ESO ISS PBL24 START 81.2
HIERARCH ESO ISS PBL24 END 80.367
HIERARCH ESO ISS PBLA24 START 94.782
HIERARCH ESO ISS PBLA24 END 95.528
HIERARCH ESO ISS PBL34 START 58.81
HIERARCH ESO ISS PBL34 END 58.432
HIERARCH ESO ISS PBLA34 START 126.254
HIERARCH ESO ISS PBLA34 END 127.222
HIERARCH ESO ISS AMBI TAU0 START 0.006426
HIERARCH ESO ISS AMBI TAU0 END 0.006179
HIERARCH ESO ISS AMBI TEMP 9.97
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.51
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371