Exposure
- ID
- GRAVI.2024-07-25T02:21:24.832_2
- Header ID
- GRAVI.2024-07-25T02:21:24.832
- Date updated
- 2024-07-25 02:30:35 UTC+0000
- Release date
- 2025-07-25 02:30:35 UTC+0000
- UTC Start
- 2024-07-25 02:21:24.832
- UTC End
- 2024-07-25 02:23:24.832
- MJD Start
- 60516.09820407
- MJD End
- 60516.0995929589
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0031775
- Ambient temperature (°C)
- 13.63
- Seeing (arcsec)
- 0.895
Observation
- ID
- 60173
- 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
- 44676
- Name
- IRS16C
- RA
- 266.417405
- DEC
- -29.0076588611111
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 | 56.3850 | 56.3680 | 26.7000 | 27.0000 |
| U1-U3 | 102.1340 | 102.0970 | 33.1000 | 33.3000 |
| U1-U4 | 129.9980 | 129.9400 | 61.1640 | 61.4160 |
| U2-U3 | 46.5170 | 46.4980 | 40.8000 | 41.0000 |
| U2-U4 | 89.3790 | 89.3510 | 82.0660 | 82.3300 |
| U3-U4 | 62.4700 | 62.4710 | 111.4820 | 111.7480 |
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 | 60516.09820407 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | IRS16NE |
| RA | 266.417124 |
| DEC | -29.00733 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| 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 | 135.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 56.385 |
| HIERARCH ESO ISS PBL12 END | 56.368 |
| HIERARCH ESO ISS PBLA12 START | 26.7 |
| HIERARCH ESO ISS PBLA12 END | 27.0 |
| HIERARCH ESO ISS PBL13 START | 102.134 |
| HIERARCH ESO ISS PBL13 END | 102.097 |
| HIERARCH ESO ISS PBLA13 START | 33.1 |
| HIERARCH ESO ISS PBLA13 END | 33.3 |
| HIERARCH ESO ISS PBL14 START | 129.998 |
| HIERARCH ESO ISS PBL14 END | 129.94 |
| HIERARCH ESO ISS PBLA14 START | 61.164 |
| HIERARCH ESO ISS PBLA14 END | 61.416 |
| HIERARCH ESO ISS PBL23 START | 46.517 |
| HIERARCH ESO ISS PBL23 END | 46.498 |
| HIERARCH ESO ISS PBLA23 START | 40.8 |
| HIERARCH ESO ISS PBLA23 END | 41.0 |
| HIERARCH ESO ISS PBL24 START | 89.379 |
| HIERARCH ESO ISS PBL24 END | 89.351 |
| HIERARCH ESO ISS PBLA24 START | 82.066 |
| HIERARCH ESO ISS PBLA24 END | 82.33 |
| HIERARCH ESO ISS PBL34 START | 62.47 |
| HIERARCH ESO ISS PBL34 END | 62.471 |
| HIERARCH ESO ISS PBLA34 START | 111.482 |
| HIERARCH ESO ISS PBLA34 END | 111.748 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003469 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002886 |
| HIERARCH ESO ISS AMBI TEMP | 13.63 |
| HIERARCH ESO ISS AMBI FWHM START | 0.8 |
| HIERARCH ESO ISS AMBI FWHM END | 0.99 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1772 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5719 |