Exposure
- ID
- GRAVI.2024-07-17T03:56:48.188_2
- Header ID
- GRAVI.2024-07-17T03:56:48.188
- Date updated
- 2024-07-17 04:15:36 UTC+0000
- Release date
- 2025-07-17 04:15:35 UTC+0000
- UTC Start
- 2024-07-17 03:56:48.188
- UTC End
- 2024-07-17 04:02:48.188
- MJD Start
- 60508.16444662
- MJD End
- 60508.1686132867
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006148
- Ambient temperature (°C)
- 17.2
- Seeing (arcsec)
- 0.815
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 | 55.4290 | 55.2720 | 32.8000 | 33.3000 |
| U1-U3 | 99.9410 | 99.5770 | 39.2000 | 39.7000 |
| U1-U4 | 125.2150 | 124.3670 | 67.9380 | 68.5640 |
| U2-U3 | 45.2740 | 45.0640 | 47.0000 | 47.5000 |
| U2-U4 | 86.0180 | 85.3900 | 89.7030 | 90.4860 |
| U3-U4 | 61.0500 | 60.7550 | 119.9100 | 120.8550 |
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 | 60508.16444662 |
| 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 | 55.429 |
| HIERARCH ESO ISS PBL12 END | 55.272 |
| HIERARCH ESO ISS PBLA12 START | 32.8 |
| HIERARCH ESO ISS PBLA12 END | 33.3 |
| HIERARCH ESO ISS PBL13 START | 99.941 |
| HIERARCH ESO ISS PBL13 END | 99.577 |
| HIERARCH ESO ISS PBLA13 START | 39.2 |
| HIERARCH ESO ISS PBLA13 END | 39.7 |
| HIERARCH ESO ISS PBL14 START | 125.215 |
| HIERARCH ESO ISS PBL14 END | 124.367 |
| HIERARCH ESO ISS PBLA14 START | 67.938 |
| HIERARCH ESO ISS PBLA14 END | 68.564 |
| HIERARCH ESO ISS PBL23 START | 45.274 |
| HIERARCH ESO ISS PBL23 END | 45.064 |
| HIERARCH ESO ISS PBLA23 START | 47.0 |
| HIERARCH ESO ISS PBLA23 END | 47.5 |
| HIERARCH ESO ISS PBL24 START | 86.018 |
| HIERARCH ESO ISS PBL24 END | 85.39 |
| HIERARCH ESO ISS PBLA24 START | 89.703 |
| HIERARCH ESO ISS PBLA24 END | 90.486 |
| HIERARCH ESO ISS PBL34 START | 61.05 |
| HIERARCH ESO ISS PBL34 END | 60.755 |
| HIERARCH ESO ISS PBLA34 START | 119.91 |
| HIERARCH ESO ISS PBLA34 END | 120.855 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006727 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005569 |
| HIERARCH ESO ISS AMBI TEMP | 17.2 |
| HIERARCH ESO ISS AMBI FWHM START | 0.74 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |