Exposure
- ID
- GRAVI.2022-01-25T02:07:05.292_2
- Header ID
- GRAVI.2022-01-25T02:07:05.292
- Date updated
- 2022-01-25 02:20:28 UTC+0000
- Release date
- 2023-01-25 02:20:28 UTC+0000
- UTC Start
- 2022-01-25 02:07:05.292
- UTC End
- 2022-01-25 02:12:05.292
- MJD Start
- 59604.0882557
- MJD End
- 59604.0917279222
- Exposure time (s)
- 300.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007828
- Ambient temperature (°C)
- 14.22
- Seeing (arcsec)
- 0.665
Observation
- ID
- 46631
- Category
- science
- Program ID
- 106.219S.001
- Program Title
- ASTROMETRIC PRECISION-WEIGHING A NON-ACCRETING STELLAR-MASS BLACK HOLE
- Program Type
- Normal
- PI / COI
- RIVINIUS/ BAADE/ HEIDA/ HADRAVA/ TRISTRAM
Target
- ID
- 35011
- Name
- LB-1
- RA
- 92.9544833333333
- DEC
- 22.8257461111111
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 | 39.7130 | 40.2460 | 33.3000 | 33.9000 |
| U1-U3 | 74.7080 | 75.8230 | 41.6000 | 42.0000 |
| U1-U4 | 115.1080 | 116.4600 | 70.8250 | 70.4800 |
| U2-U3 | 35.8720 | 36.4220 | 50.8000 | 50.9000 |
| U2-U4 | 87.0250 | 87.4950 | 86.9550 | 86.3940 |
| U3-U4 | 61.7880 | 61.5590 | 106.9760 | 106.4600 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.219S.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59604.0882557 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | LB-1 |
| HIERARCH ESO INS SOBJ NAME | Sky |
| RA | 92.956439 |
| DEC | 22.82573 |
| HIERARCH ESO INS SPEC RES | LOW |
| HIERARCH ESO INS POLA MODE | COMBINED |
| 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 | 354.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 300 |
| HIERARCH ESO ISS PBL12 START | 39.713 |
| HIERARCH ESO ISS PBL12 END | 40.246 |
| HIERARCH ESO ISS PBLA12 START | 33.3 |
| HIERARCH ESO ISS PBLA12 END | 33.9 |
| HIERARCH ESO ISS PBL13 START | 74.708 |
| HIERARCH ESO ISS PBL13 END | 75.823 |
| HIERARCH ESO ISS PBLA13 START | 41.6 |
| HIERARCH ESO ISS PBLA13 END | 42.0 |
| HIERARCH ESO ISS PBL14 START | 115.108 |
| HIERARCH ESO ISS PBL14 END | 116.46 |
| HIERARCH ESO ISS PBLA14 START | 70.825 |
| HIERARCH ESO ISS PBLA14 END | 70.48 |
| HIERARCH ESO ISS PBL23 START | 35.872 |
| HIERARCH ESO ISS PBL23 END | 36.422 |
| HIERARCH ESO ISS PBLA23 START | 50.8 |
| HIERARCH ESO ISS PBLA23 END | 50.9 |
| HIERARCH ESO ISS PBL24 START | 87.025 |
| HIERARCH ESO ISS PBL24 END | 87.495 |
| HIERARCH ESO ISS PBLA24 START | 86.955 |
| HIERARCH ESO ISS PBLA24 END | 86.394 |
| HIERARCH ESO ISS PBL34 START | 61.788 |
| HIERARCH ESO ISS PBL34 END | 61.559 |
| HIERARCH ESO ISS PBLA34 START | 106.976 |
| HIERARCH ESO ISS PBLA34 END | 106.46 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007523 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008133 |
| HIERARCH ESO ISS AMBI TEMP | 14.22 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.63 |
| HIERARCH ESO FT ROBJ NAME | LB-1 |
| HIERARCH ESO FT ROBJ ALPHA | 061149.076 |
| HIERARCH ESO FT ROBJ DELTA | 224932.686 |