Exposure
- ID
- GRAVI.2022-08-17T08:38:26.568_2
- Header ID
- GRAVI.2022-08-17T08:38:26.568
- Date updated
- 2022-08-17 08:55:44 UTC+0000
- Release date
- 2023-08-17 08:55:44 UTC+0000
- UTC Start
- 2022-08-17 08:38:26.568
- UTC End
- 2022-08-17 08:44:26.568
- MJD Start
- 59808.36002972
- MJD End
- 59808.3641963867
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002943
- Ambient temperature (°C)
- 8.45
- Seeing (arcsec)
- 0.47
Observation
- ID
- 51970
- Category
- science
- Program ID
- 109.23BY.001
- 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 | 53.5550 | 53.8320 | 37.5000 | 37.3000 |
| U1-U3 | 99.6360 | 100.0220 | 41.1000 | 40.7000 |
| U1-U4 | 128.0390 | 127.5090 | 55.8330 | 55.0980 |
| U2-U3 | 46.3050 | 46.3990 | 45.2000 | 44.7000 |
| U2-U4 | 79.0240 | 78.0060 | 68.1510 | 67.2750 |
| U3-U4 | 40.6260 | 39.3980 | 94.5550 | 94.1160 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.23BY.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59808.36002972 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HR8799 |
| HIERARCH ESO INS SOBJ NAME | hr8799f |
| RA | 346.872266 |
| DEC | 21.13372 |
| 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 | 53.555 |
| HIERARCH ESO ISS PBL12 END | 53.832 |
| HIERARCH ESO ISS PBLA12 START | 37.5 |
| HIERARCH ESO ISS PBLA12 END | 37.3 |
| HIERARCH ESO ISS PBL13 START | 99.636 |
| HIERARCH ESO ISS PBL13 END | 100.022 |
| HIERARCH ESO ISS PBLA13 START | 41.1 |
| HIERARCH ESO ISS PBLA13 END | 40.7 |
| HIERARCH ESO ISS PBL14 START | 128.039 |
| HIERARCH ESO ISS PBL14 END | 127.509 |
| HIERARCH ESO ISS PBLA14 START | 55.833 |
| HIERARCH ESO ISS PBLA14 END | 55.098 |
| HIERARCH ESO ISS PBL23 START | 46.305 |
| HIERARCH ESO ISS PBL23 END | 46.399 |
| HIERARCH ESO ISS PBLA23 START | 45.2 |
| HIERARCH ESO ISS PBLA23 END | 44.7 |
| HIERARCH ESO ISS PBL24 START | 79.024 |
| HIERARCH ESO ISS PBL24 END | 78.006 |
| HIERARCH ESO ISS PBLA24 START | 68.151 |
| HIERARCH ESO ISS PBLA24 END | 67.275 |
| HIERARCH ESO ISS PBL34 START | 40.626 |
| HIERARCH ESO ISS PBL34 END | 39.398 |
| HIERARCH ESO ISS PBLA34 START | 94.555 |
| HIERARCH ESO ISS PBLA34 END | 94.116 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002943 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002943 |
| HIERARCH ESO ISS AMBI TEMP | 8.45 |
| HIERARCH ESO ISS AMBI FWHM START | 0.47 |
| HIERARCH ESO ISS AMBI FWHM END | 0.47 |
| HIERARCH ESO FT ROBJ NAME | HR8799 |
| HIERARCH ESO FT ROBJ ALPHA | 230728.715 |
| HIERARCH ESO FT ROBJ DELTA | 210803.302 |