Exposure
ID
GRAVI.2024-07-18T04:01:57.614_1
Header ID
GRAVI.2024-07-18T04:01:57.614
Date updated
2024-07-18 08:45:42 UTC+0000
Release date
2025-07-18 08:45:39 UTC+0000
UTC Start
2024-07-18 04:01:57.614
UTC End
2024-07-18 04:07:57.614
MJD Start
60509.16802794
MJD End
60509.1721946067
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0081975
Ambient temperature (°C)
16.7
Seeing (arcsec)
0.43
Observation
ID
60146
Category
science
Program ID
113.268P.004
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
44649
Name
SGRA
RA
266.416896
DEC
-29.00733
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 55.2050 55.0300 33.6000 34.1000
U1-U3 99.4190 99.0130 39.9000 40.4000
U1-U4 123.9970 123.0460 68.8200 69.4380
U2-U3 44.9730 44.7380 47.7000 48.2000
U2-U4 85.1170 84.4130 90.8100 91.6060
U3-U4 60.6260 60.2960 121.2500 122.2290
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60509.16802794
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416896
DEC -29.00733
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 55.205
HIERARCH ESO ISS PBL12 END 55.03
HIERARCH ESO ISS PBLA12 START 33.6
HIERARCH ESO ISS PBLA12 END 34.1
HIERARCH ESO ISS PBL13 START 99.419
HIERARCH ESO ISS PBL13 END 99.013
HIERARCH ESO ISS PBLA13 START 39.9
HIERARCH ESO ISS PBLA13 END 40.4
HIERARCH ESO ISS PBL14 START 123.997
HIERARCH ESO ISS PBL14 END 123.046
HIERARCH ESO ISS PBLA14 START 68.82
HIERARCH ESO ISS PBLA14 END 69.438
HIERARCH ESO ISS PBL23 START 44.973
HIERARCH ESO ISS PBL23 END 44.738
HIERARCH ESO ISS PBLA23 START 47.7
HIERARCH ESO ISS PBLA23 END 48.2
HIERARCH ESO ISS PBL24 START 85.117
HIERARCH ESO ISS PBL24 END 84.413
HIERARCH ESO ISS PBLA24 START 90.81
HIERARCH ESO ISS PBLA24 END 91.606
HIERARCH ESO ISS PBL34 START 60.626
HIERARCH ESO ISS PBL34 END 60.296
HIERARCH ESO ISS PBLA34 START 121.25
HIERARCH ESO ISS PBLA34 END 122.229
HIERARCH ESO ISS AMBI TAU0 START 0.008031
HIERARCH ESO ISS AMBI TAU0 END 0.008364
HIERARCH ESO ISS AMBI TEMP 16.7
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.42
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541