Exposure
- ID
- GRAVI.2022-01-25T01:53:17.257_2
- Header ID
- GRAVI.2022-01-25T01:53:17.257
- Date updated
- 2022-01-25 02:10:47 UTC+0000
- Release date
- 2023-01-25 02:10:47 UTC+0000
- UTC Start
- 2022-01-25 01:53:17.257
- UTC End
- 2022-01-25 01:58:17.257
- MJD Start
- 59604.07867196
- MJD End
- 59604.08214418222
- Exposure time (s)
- 300.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0062835
- Ambient temperature (°C)
- 14.32
- Seeing (arcsec)
- 0.755
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
- 92.95448333333333
- DEC
- 22.825746111111112
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 | 38.4880 | 39.0130 | 31.9000 | 32.5000 |
| U1-U3 | 72.0940 | 73.2230 | 40.6000 | 41.1000 |
| U1-U4 | 111.7440 | 113.2300 | 71.5880 | 71.2660 |
| U2-U3 | 34.5570 | 35.1290 | 50.4000 | 50.6000 |
| U2-U4 | 85.7470 | 86.3290 | 88.2610 | 87.6980 |
| U3-U4 | 62.1900 | 62.0390 | 108.1990 | 107.6680 |
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 | 59604.07867196 |
| 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 | 38.488 |
| HIERARCH ESO ISS PBL12 END | 39.013 |
| HIERARCH ESO ISS PBLA12 START | 31.9 |
| HIERARCH ESO ISS PBLA12 END | 32.5 |
| HIERARCH ESO ISS PBL13 START | 72.094 |
| HIERARCH ESO ISS PBL13 END | 73.223 |
| HIERARCH ESO ISS PBLA13 START | 40.6 |
| HIERARCH ESO ISS PBLA13 END | 41.1 |
| HIERARCH ESO ISS PBL14 START | 111.744 |
| HIERARCH ESO ISS PBL14 END | 113.23 |
| HIERARCH ESO ISS PBLA14 START | 71.588 |
| HIERARCH ESO ISS PBLA14 END | 71.266 |
| HIERARCH ESO ISS PBL23 START | 34.557 |
| HIERARCH ESO ISS PBL23 END | 35.129 |
| HIERARCH ESO ISS PBLA23 START | 50.4 |
| HIERARCH ESO ISS PBLA23 END | 50.6 |
| HIERARCH ESO ISS PBL24 START | 85.747 |
| HIERARCH ESO ISS PBL24 END | 86.329 |
| HIERARCH ESO ISS PBLA24 START | 88.261 |
| HIERARCH ESO ISS PBLA24 END | 87.698 |
| HIERARCH ESO ISS PBL34 START | 62.19 |
| HIERARCH ESO ISS PBL34 END | 62.039 |
| HIERARCH ESO ISS PBLA34 START | 108.199 |
| HIERARCH ESO ISS PBLA34 END | 107.668 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005404 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007163 |
| HIERARCH ESO ISS AMBI TEMP | 14.32 |
| HIERARCH ESO ISS AMBI FWHM START | 0.79 |
| HIERARCH ESO ISS AMBI FWHM END | 0.72 |
| HIERARCH ESO FT ROBJ NAME | LB-1 |
| HIERARCH ESO FT ROBJ ALPHA | 061149.076 |
| HIERARCH ESO FT ROBJ DELTA | 224932.686 |