Exposure
- ID
- GRAVI.2024-07-17T03:13:18.078_2
- Header ID
- GRAVI.2024-07-17T03:13:18.078
- Date updated
- 2024-07-17 03:30:37 UTC+0000
- Release date
- 2025-07-17 03:30:37 UTC+0000
- UTC Start
- 2024-07-17 03:13:18.078
- UTC End
- 2024-07-17 03:19:18.078
- MJD Start
- 60508.13423701
- MJD End
- 60508.1384036767
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0046615
- Ambient temperature (°C)
- 17.39
- Seeing (arcsec)
- 0.885
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 | 56.1860 | 56.1050 | 28.8000 | 29.4000 |
| U1-U3 | 101.6930 | 101.5070 | 35.2000 | 35.8000 |
| U1-U4 | 129.1760 | 128.7820 | 63.4420 | 64.1380 |
| U2-U3 | 46.2770 | 46.1720 | 42.9000 | 43.6000 |
| U2-U4 | 88.8800 | 88.6110 | 84.4980 | 85.2640 |
| U3-U4 | 62.3380 | 62.2310 | 114.0020 | 114.8280 |
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 | 60508.13423701 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416869 |
| DEC | -29.00738 |
| 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 | 56.186 |
| HIERARCH ESO ISS PBL12 END | 56.105 |
| HIERARCH ESO ISS PBLA12 START | 28.8 |
| HIERARCH ESO ISS PBLA12 END | 29.4 |
| HIERARCH ESO ISS PBL13 START | 101.693 |
| HIERARCH ESO ISS PBL13 END | 101.507 |
| HIERARCH ESO ISS PBLA13 START | 35.2 |
| HIERARCH ESO ISS PBLA13 END | 35.8 |
| HIERARCH ESO ISS PBL14 START | 129.176 |
| HIERARCH ESO ISS PBL14 END | 128.782 |
| HIERARCH ESO ISS PBLA14 START | 63.442 |
| HIERARCH ESO ISS PBLA14 END | 64.138 |
| HIERARCH ESO ISS PBL23 START | 46.277 |
| HIERARCH ESO ISS PBL23 END | 46.172 |
| HIERARCH ESO ISS PBLA23 START | 42.9 |
| HIERARCH ESO ISS PBLA23 END | 43.6 |
| HIERARCH ESO ISS PBL24 START | 88.88 |
| HIERARCH ESO ISS PBL24 END | 88.611 |
| HIERARCH ESO ISS PBLA24 START | 84.498 |
| HIERARCH ESO ISS PBLA24 END | 85.264 |
| HIERARCH ESO ISS PBL34 START | 62.338 |
| HIERARCH ESO ISS PBL34 END | 62.231 |
| HIERARCH ESO ISS PBLA34 START | 114.002 |
| HIERARCH ESO ISS PBLA34 END | 114.828 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003492 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005831 |
| HIERARCH ESO ISS AMBI TEMP | 17.39 |
| HIERARCH ESO ISS AMBI FWHM START | 0.95 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |