Exposure
- ID
- GRAVI.2024-07-18T02:50:03.431_2
- Header ID
- GRAVI.2024-07-18T02:50:03.431
- 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 02:50:03.431
- UTC End
- 2024-07-18 02:56:03.431
- MJD Start
- 60509.11809527
- MJD End
- 60509.1222619367
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0112745
- Ambient temperature (°C)
- 17.75
- Seeing (arcsec)
- 0.385
Observation
- ID
- 60139
- 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
- 43560
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816944444
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 | 56.3770 | 56.3220 | 26.8000 | 27.5000 |
| U1-U3 | 102.1160 | 101.9960 | 33.2000 | 33.9000 |
| U1-U4 | 129.9700 | 129.7680 | 61.2870 | 62.0200 |
| U2-U3 | 46.5080 | 46.4440 | 40.9000 | 41.6000 |
| U2-U4 | 89.3660 | 89.2570 | 82.1950 | 82.9670 |
| U3-U4 | 62.4710 | 62.4590 | 111.6120 | 112.3980 |
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 | 60509.11809527 |
| 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 | 56.377 |
| HIERARCH ESO ISS PBL12 END | 56.322 |
| HIERARCH ESO ISS PBLA12 START | 26.8 |
| HIERARCH ESO ISS PBLA12 END | 27.5 |
| HIERARCH ESO ISS PBL13 START | 102.116 |
| HIERARCH ESO ISS PBL13 END | 101.996 |
| HIERARCH ESO ISS PBLA13 START | 33.2 |
| HIERARCH ESO ISS PBLA13 END | 33.9 |
| HIERARCH ESO ISS PBL14 START | 129.97 |
| HIERARCH ESO ISS PBL14 END | 129.768 |
| HIERARCH ESO ISS PBLA14 START | 61.287 |
| HIERARCH ESO ISS PBLA14 END | 62.02 |
| HIERARCH ESO ISS PBL23 START | 46.508 |
| HIERARCH ESO ISS PBL23 END | 46.444 |
| HIERARCH ESO ISS PBLA23 START | 40.9 |
| HIERARCH ESO ISS PBLA23 END | 41.6 |
| HIERARCH ESO ISS PBL24 START | 89.366 |
| HIERARCH ESO ISS PBL24 END | 89.257 |
| HIERARCH ESO ISS PBLA24 START | 82.195 |
| HIERARCH ESO ISS PBLA24 END | 82.967 |
| HIERARCH ESO ISS PBL34 START | 62.471 |
| HIERARCH ESO ISS PBL34 END | 62.459 |
| HIERARCH ESO ISS PBLA34 START | 111.612 |
| HIERARCH ESO ISS PBLA34 END | 112.398 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.011377 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.011172 |
| HIERARCH ESO ISS AMBI TEMP | 17.75 |
| HIERARCH ESO ISS AMBI FWHM START | 0.42 |
| HIERARCH ESO ISS AMBI FWHM END | 0.35 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |