Exposure
- ID
- GRAVI.2022-08-16T07:20:07.262_2
- Header ID
- GRAVI.2022-08-16T07:20:07.262
- Date updated
- 2022-08-16 07:35:42 UTC+0000
- Release date
- 2023-08-16 07:35:42 UTC+0000
- UTC Start
- 2022-08-16 07:20:07.262
- UTC End
- 2022-08-16 07:26:07.262
- MJD Start
- 59807.30563961
- MJD End
- 59807.3098062767
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0024165
- Ambient temperature (°C)
- 7.9
- Seeing (arcsec)
- 1.215
Observation
- ID
- 51919
- Category
- science
- Program ID
- 109.23BY.002
- Program Title
- SIZING UP THE HOT DUST CONTINUUM IN AGN WITH DIRECT MEASUREMENTS
- Program Type
- Normal
- PI / COI
- DAVIES/ DE ZEEUW/ DEXTER/ HOENIG/ LUTZ/ SHANGGUAN/ SHIMIZU/ STURM/ SANTOS/ CAO/ KISHIMOTO
Target
- ID
- 32940
- Name
- HR8799
- RA
- 346.869645833333
- DEC
- 21.1342505555556
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 | 48.6820 | 49.1340 | 38.0000 | 38.1000 |
| U1-U3 | 91.7450 | 92.5380 | 43.4000 | 43.3000 |
| U1-U4 | 129.4590 | 129.7470 | 63.7390 | 63.2280 |
| U2-U3 | 43.5240 | 43.8440 | 49.4000 | 49.2000 |
| U2-U4 | 88.1910 | 87.7890 | 77.6230 | 76.9890 |
| U3-U4 | 53.8930 | 53.0720 | 100.0340 | 99.6120 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.23BY.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59807.30563961 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HR8799 |
| HIERARCH ESO INS SOBJ NAME | hr8799f |
| RA | 346.872401 |
| DEC | 21.13387 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| 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 | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 48.682 |
| HIERARCH ESO ISS PBL12 END | 49.134 |
| HIERARCH ESO ISS PBLA12 START | 38.0 |
| HIERARCH ESO ISS PBLA12 END | 38.1 |
| HIERARCH ESO ISS PBL13 START | 91.745 |
| HIERARCH ESO ISS PBL13 END | 92.538 |
| HIERARCH ESO ISS PBLA13 START | 43.4 |
| HIERARCH ESO ISS PBLA13 END | 43.3 |
| HIERARCH ESO ISS PBL14 START | 129.459 |
| HIERARCH ESO ISS PBL14 END | 129.747 |
| HIERARCH ESO ISS PBLA14 START | 63.739 |
| HIERARCH ESO ISS PBLA14 END | 63.228 |
| HIERARCH ESO ISS PBL23 START | 43.524 |
| HIERARCH ESO ISS PBL23 END | 43.844 |
| HIERARCH ESO ISS PBLA23 START | 49.4 |
| HIERARCH ESO ISS PBLA23 END | 49.2 |
| HIERARCH ESO ISS PBL24 START | 88.191 |
| HIERARCH ESO ISS PBL24 END | 87.789 |
| HIERARCH ESO ISS PBLA24 START | 77.623 |
| HIERARCH ESO ISS PBLA24 END | 76.989 |
| HIERARCH ESO ISS PBL34 START | 53.893 |
| HIERARCH ESO ISS PBL34 END | 53.072 |
| HIERARCH ESO ISS PBLA34 START | 100.034 |
| HIERARCH ESO ISS PBLA34 END | 99.612 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002436 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002397 |
| HIERARCH ESO ISS AMBI TEMP | 7.9 |
| HIERARCH ESO ISS AMBI FWHM START | 1.24 |
| HIERARCH ESO ISS AMBI FWHM END | 1.19 |
| HIERARCH ESO FT ROBJ NAME | HR8799 |
| HIERARCH ESO FT ROBJ ALPHA | 230728.715 |
| HIERARCH ESO FT ROBJ DELTA | 210803.302 |