Exposure
ID
GRAVI.2024-06-25T03:50:14.471_1
Header ID
GRAVI.2024-06-25T03:50:14.471
Date updated
2024-06-25 04:05:33 UTC+0000
Release date
2025-06-25 04:05:32 UTC+0000
UTC Start
2024-06-25 03:50:14.471
UTC End
2024-06-25 03:55:34.471
MJD Start
60486.15988971
MJD End
60486.1635934137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.002945
Ambient temperature (°C)
9.54
Seeing (arcsec)
0.715
Observation
ID
59769
Category
science
Program ID
113.268P.003
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44331
Name
SGRA
RA
266.416918
DEC
-29.00728
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5320 56.5140 23.5000 24.1000
U1-U3 102.4170 102.3900 29.8000 30.4000
U1-U4 130.1110 130.1820 57.6320 58.3430
U2-U3 46.6410 46.6350 37.4000 38.1000
U2-U4 89.1670 89.2920 78.4820 79.1890
U3-U4 62.0830 62.2130 108.0510 108.7010
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60486.15988971
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416918
DEC -29.00728
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 56.532
HIERARCH ESO ISS PBL12 END 56.514
HIERARCH ESO ISS PBLA12 START 23.5
HIERARCH ESO ISS PBLA12 END 24.1
HIERARCH ESO ISS PBL13 START 102.417
HIERARCH ESO ISS PBL13 END 102.39
HIERARCH ESO ISS PBLA13 START 29.8
HIERARCH ESO ISS PBLA13 END 30.4
HIERARCH ESO ISS PBL14 START 130.111
HIERARCH ESO ISS PBL14 END 130.182
HIERARCH ESO ISS PBLA14 START 57.632
HIERARCH ESO ISS PBLA14 END 58.343
HIERARCH ESO ISS PBL23 START 46.641
HIERARCH ESO ISS PBL23 END 46.635
HIERARCH ESO ISS PBLA23 START 37.4
HIERARCH ESO ISS PBLA23 END 38.1
HIERARCH ESO ISS PBL24 START 89.167
HIERARCH ESO ISS PBL24 END 89.292
HIERARCH ESO ISS PBLA24 START 78.482
HIERARCH ESO ISS PBLA24 END 79.189
HIERARCH ESO ISS PBL34 START 62.083
HIERARCH ESO ISS PBL34 END 62.213
HIERARCH ESO ISS PBLA34 START 108.051
HIERARCH ESO ISS PBLA34 END 108.701
HIERARCH ESO ISS AMBI TAU0 START 0.003227
HIERARCH ESO ISS AMBI TAU0 END 0.002663
HIERARCH ESO ISS AMBI TEMP 9.54
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.73
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541