Exposure
- ID
- GRAVI.2024-05-31T08:21:34.688_2
- Header ID
- GRAVI.2024-05-31T08:21:34.688
- Date updated
- 2024-05-31 08:40:30 UTC+0000
- Release date
- 2025-05-31 08:40:30 UTC+0000
- UTC Start
- 2024-05-31 08:21:34.688
- UTC End
- 2024-05-31 08:27:34.688
- MJD Start
- 60461.34831815
- MJD End
- 60461.3524848167
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0031835
- Ambient temperature (°C)
- 15.9
- Seeing (arcsec)
- 0.815
Observation
- ID
- 59423
- Category
- science
- Program ID
- 113.268P.002
- 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 | 52.5470 | 52.2180 | 38.3000 | 38.7000 |
| U1-U3 | 93.2810 | 92.5310 | 44.6000 | 44.9000 |
| U1-U4 | 109.7710 | 108.0630 | 75.2250 | 75.7780 |
| U2-U3 | 41.4420 | 41.0130 | 52.5000 | 52.8000 |
| U2-U4 | 74.7380 | 73.5220 | 100.1930 | 101.1560 |
| U3-U4 | 55.9890 | 55.4880 | 133.3870 | 134.6710 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60461.34831815 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416443 |
| DEC | -29.00715 |
| 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 | 52.547 |
| HIERARCH ESO ISS PBL12 END | 52.218 |
| HIERARCH ESO ISS PBLA12 START | 38.3 |
| HIERARCH ESO ISS PBLA12 END | 38.7 |
| HIERARCH ESO ISS PBL13 START | 93.281 |
| HIERARCH ESO ISS PBL13 END | 92.531 |
| HIERARCH ESO ISS PBLA13 START | 44.6 |
| HIERARCH ESO ISS PBLA13 END | 44.9 |
| HIERARCH ESO ISS PBL14 START | 109.771 |
| HIERARCH ESO ISS PBL14 END | 108.063 |
| HIERARCH ESO ISS PBLA14 START | 75.225 |
| HIERARCH ESO ISS PBLA14 END | 75.778 |
| HIERARCH ESO ISS PBL23 START | 41.442 |
| HIERARCH ESO ISS PBL23 END | 41.013 |
| HIERARCH ESO ISS PBLA23 START | 52.5 |
| HIERARCH ESO ISS PBLA23 END | 52.8 |
| HIERARCH ESO ISS PBL24 START | 74.738 |
| HIERARCH ESO ISS PBL24 END | 73.522 |
| HIERARCH ESO ISS PBLA24 START | 100.193 |
| HIERARCH ESO ISS PBLA24 END | 101.156 |
| HIERARCH ESO ISS PBL34 START | 55.989 |
| HIERARCH ESO ISS PBL34 END | 55.488 |
| HIERARCH ESO ISS PBLA34 START | 133.387 |
| HIERARCH ESO ISS PBLA34 END | 134.671 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001721 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004646 |
| HIERARCH ESO ISS AMBI TEMP | 15.9 |
| HIERARCH ESO ISS AMBI FWHM START | 0.97 |
| HIERARCH ESO ISS AMBI FWHM END | 0.66 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |