Exposure
- ID
- GRAVI.2024-06-30T09:53:51.292_1
- Header ID
- GRAVI.2024-06-30T09:53:51.292
- Date updated
- 2024-06-30 10:00:39 UTC+0000
- Release date
- 2025-06-30 10:00:39 UTC+0000
- UTC Start
- 2024-06-30 09:53:51.292
- UTC End
- 2024-06-30 09:55:51.292
- MJD Start
- 60491.41239921
- MJD End
- 60491.4137880989
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003208
- Ambient temperature (°C)
- 11.75
- Seeing (arcsec)
- 0.65
Observation
- ID
- 59803
- Category
- science
- Program ID
- 113.26T9.002
- Program Title
- FIRST SYSTEMATIC SEARCH FOR PARSEC-SCALE SUPERMASSIVE BLACK HOLE BINARIES WITH VLTI/GRAVITY
- Program Type
- Normal
- PI / COI
- SHANGGUAN / SHIMIZU / GENZEL / DAVIES / STURM / LUTZ / EISENHAUER / TACCONI / FORSTER SCHREIBER / DEXTER / SANTOS / CAO / HOENIG / PERRIN / PETROV / PAUMARD / CLÉNET / DE ZEEUW / LEFTLEY / SYKES / LI
Target
- ID
- 44362
- Name
- AKN_557
- RA
- 338.127802
- DEC
- 8.20851
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 53.3690 | 53.4710 | 34.6000 | 34.6000 |
| U1-U3 | 98.5590 | 98.7310 | 40.1000 | 40.1000 |
| U1-U4 | 130.1930 | 130.1700 | 62.8640 | 62.7780 |
| U2-U3 | 45.7280 | 45.7920 | 46.5000 | 46.5000 |
| U2-U4 | 86.9660 | 86.7640 | 79.7810 | 79.6760 |
| U3-U4 | 54.7830 | 54.5040 | 107.0020 | 107.0110 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.26T9.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60491.41239921 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AKN 557 |
| HIERARCH ESO INS SOBJ NAME | AKN_557 |
| RA | 338.127802 |
| DEC | 8.20851 |
| 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 | 137.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 53.369 |
| HIERARCH ESO ISS PBL12 END | 53.471 |
| HIERARCH ESO ISS PBLA12 START | 34.6 |
| HIERARCH ESO ISS PBLA12 END | 34.6 |
| HIERARCH ESO ISS PBL13 START | 98.559 |
| HIERARCH ESO ISS PBL13 END | 98.731 |
| HIERARCH ESO ISS PBLA13 START | 40.1 |
| HIERARCH ESO ISS PBLA13 END | 40.1 |
| HIERARCH ESO ISS PBL14 START | 130.193 |
| HIERARCH ESO ISS PBL14 END | 130.17 |
| HIERARCH ESO ISS PBLA14 START | 62.864 |
| HIERARCH ESO ISS PBLA14 END | 62.778 |
| HIERARCH ESO ISS PBL23 START | 45.728 |
| HIERARCH ESO ISS PBL23 END | 45.792 |
| HIERARCH ESO ISS PBLA23 START | 46.5 |
| HIERARCH ESO ISS PBLA23 END | 46.5 |
| HIERARCH ESO ISS PBL24 START | 86.966 |
| HIERARCH ESO ISS PBL24 END | 86.764 |
| HIERARCH ESO ISS PBLA24 START | 79.781 |
| HIERARCH ESO ISS PBLA24 END | 79.676 |
| HIERARCH ESO ISS PBL34 START | 54.783 |
| HIERARCH ESO ISS PBL34 END | 54.504 |
| HIERARCH ESO ISS PBLA34 START | 107.002 |
| HIERARCH ESO ISS PBLA34 END | 107.011 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003204 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003212 |
| HIERARCH ESO ISS AMBI TEMP | 11.75 |
| HIERARCH ESO ISS AMBI FWHM START | 0.65 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | star |
| HIERARCH ESO FT ROBJ ALPHA | 223230.558 |
| HIERARCH ESO FT ROBJ DELTA | 081236.148 |