Exposure
ID
GRAVI.2021-05-30T05:46:23.374_2
Header ID
GRAVI.2021-05-30T05:46:23.374
Date updated
2021-05-30 06:00:23 UTC+0000
Release date
2022-05-30 06:00:23 UTC+0000
UTC Start
2021-05-30 05:46:23.374
UTC End
2021-05-30 05:51:43.374
MJD Start
59364.24054831
MJD End
59364.2442520137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.00708
Ambient temperature (°C)
9.75
Seeing (arcsec)
0.62
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 56.4840 56.4540 25.0000 25.6000
U1-U3 102.3370 102.2790 31.3000 32.0000
U1-U4 130.2090 130.1770 59.2580 59.9500
U2-U3 46.6150 46.5890 39.0000 39.6000
U2-U4 89.3950 89.4270 80.1090 80.8130
U3-U4 62.3420 62.4120 109.5680 110.2460
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 59364.24054831
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 56.484
HIERARCH ESO ISS PBL12 END 56.454
HIERARCH ESO ISS PBLA12 START 25.0
HIERARCH ESO ISS PBLA12 END 25.6
HIERARCH ESO ISS PBL13 START 102.337
HIERARCH ESO ISS PBL13 END 102.279
HIERARCH ESO ISS PBLA13 START 31.3
HIERARCH ESO ISS PBLA13 END 32.0
HIERARCH ESO ISS PBL14 START 130.209
HIERARCH ESO ISS PBL14 END 130.177
HIERARCH ESO ISS PBLA14 START 59.258
HIERARCH ESO ISS PBLA14 END 59.95
HIERARCH ESO ISS PBL23 START 46.615
HIERARCH ESO ISS PBL23 END 46.589
HIERARCH ESO ISS PBLA23 START 39.0
HIERARCH ESO ISS PBLA23 END 39.6
HIERARCH ESO ISS PBL24 START 89.395
HIERARCH ESO ISS PBL24 END 89.427
HIERARCH ESO ISS PBLA24 START 80.109
HIERARCH ESO ISS PBLA24 END 80.813
HIERARCH ESO ISS PBL34 START 62.342
HIERARCH ESO ISS PBL34 END 62.412
HIERARCH ESO ISS PBLA34 START 109.568
HIERARCH ESO ISS PBLA34 END 110.246
HIERARCH ESO ISS AMBI TAU0 START 0.00708
HIERARCH ESO ISS AMBI TAU0 END 0.00708
HIERARCH ESO ISS AMBI TEMP 9.75
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.66
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371