Exposure
- ID
- GRAVI.2024-07-25T08:28:26.807_1
- Header ID
- GRAVI.2024-07-25T08:28:26.807
- Date updated
- 2024-07-25 08:40:37 UTC+0000
- Release date
- 2025-07-25 08:40:37 UTC+0000
- UTC Start
- 2024-07-25 08:28:26.807
- UTC End
- 2024-07-25 08:30:26.807
- MJD Start
- 60516.35308804
- MJD End
- 60516.3544769289
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003132
- Ambient temperature (°C)
- 12.14
- Seeing (arcsec)
- 0.705
Observation
- ID
- 60188
- 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
- 44690
- Name
- AKN_557
- RA
- 338.127944
- DEC
- 8.20851
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 53.9340 | 54.0290 | 35.0000 | 35.0000 |
| U1-U3 | 99.4940 | 99.6460 | 40.3000 | 40.3000 |
| U1-U4 | 129.9300 | 129.8520 | 62.3380 | 62.2380 |
| U2-U3 | 46.0610 | 46.1120 | 46.5000 | 46.5000 |
| U2-U4 | 85.7000 | 85.4510 | 79.1590 | 79.0450 |
| U3-U4 | 53.1130 | 52.8040 | 107.0780 | 107.0990 |
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 | 60516.35308804 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AKN 557 |
| HIERARCH ESO INS SOBJ NAME | AKN_557 |
| RA | 338.127944 |
| 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 | 53.934 |
| HIERARCH ESO ISS PBL12 END | 54.029 |
| HIERARCH ESO ISS PBLA12 START | 35.0 |
| HIERARCH ESO ISS PBLA12 END | 35.0 |
| HIERARCH ESO ISS PBL13 START | 99.494 |
| HIERARCH ESO ISS PBL13 END | 99.646 |
| HIERARCH ESO ISS PBLA13 START | 40.3 |
| HIERARCH ESO ISS PBLA13 END | 40.3 |
| HIERARCH ESO ISS PBL14 START | 129.93 |
| HIERARCH ESO ISS PBL14 END | 129.852 |
| HIERARCH ESO ISS PBLA14 START | 62.338 |
| HIERARCH ESO ISS PBLA14 END | 62.238 |
| HIERARCH ESO ISS PBL23 START | 46.061 |
| HIERARCH ESO ISS PBL23 END | 46.112 |
| HIERARCH ESO ISS PBLA23 START | 46.5 |
| HIERARCH ESO ISS PBLA23 END | 46.5 |
| HIERARCH ESO ISS PBL24 START | 85.7 |
| HIERARCH ESO ISS PBL24 END | 85.451 |
| HIERARCH ESO ISS PBLA24 START | 79.159 |
| HIERARCH ESO ISS PBLA24 END | 79.045 |
| HIERARCH ESO ISS PBL34 START | 53.113 |
| HIERARCH ESO ISS PBL34 END | 52.804 |
| HIERARCH ESO ISS PBLA34 START | 107.078 |
| HIERARCH ESO ISS PBLA34 END | 107.099 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003176 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003088 |
| HIERARCH ESO ISS AMBI TEMP | 12.14 |
| HIERARCH ESO ISS AMBI FWHM START | 0.77 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | star |
| HIERARCH ESO FT ROBJ ALPHA | 223230.558 |
| HIERARCH ESO FT ROBJ DELTA | 081236.148 |