Exposure
- ID
- GRAVI.2022-01-23T01:50:21.916_2
- Header ID
- GRAVI.2022-01-23T01:50:21.916
- Date updated
- 2022-01-23 02:05:56 UTC+0000
- Release date
- 2023-01-23 02:05:56 UTC+0000
- UTC Start
- 2022-01-23 01:50:21.916
- UTC End
- 2022-01-23 01:56:21.916
- MJD Start
- 59602.07664255
- MJD End
- 59602.08080921666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005599
- Ambient temperature (°C)
- 14.39
- Seeing (arcsec)
- 0.895
Observation
- ID
- 49346
- Category
- science
- Program ID
- 108.227A.004
- Program Title
- DEEP EXPLORATION OF THE AB AUR SYSTEM: CONFIRMATION OF A PROTOPLANET
- Program Type
- Normal
- PI / COI
- BOCCALETTI/ LACOUR/ MILLI/ MAIRE/ BECK/ PIETU/ TANG/ DI FOLCO/ DUTREY/ GUILLOTEAU/ PANTIN/ HUELAMO
Target
- ID
- 36917
- Name
- AB_Aur
- RA
- 73.94102083333334
- DEC
- 30.5511925
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 | 40.2930 | 40.9120 | 41.4000 | 41.6000 |
| U1-U3 | 77.8530 | 79.0160 | 48.1000 | 48.0000 |
| U1-U4 | 122.6440 | 123.5870 | 69.9500 | 69.3100 |
| U2-U3 | 38.1170 | 38.6320 | 55.1000 | 54.8000 |
| U2-U4 | 89.3370 | 89.4080 | 82.3890 | 81.5920 |
| U3-U4 | 58.1490 | 57.5990 | 99.8770 | 99.1650 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 108.227A.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59602.07664255 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942871 |
| DEC | 30.551 |
| 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 | 40.293 |
| HIERARCH ESO ISS PBL12 END | 40.912 |
| HIERARCH ESO ISS PBLA12 START | 41.4 |
| HIERARCH ESO ISS PBLA12 END | 41.6 |
| HIERARCH ESO ISS PBL13 START | 77.853 |
| HIERARCH ESO ISS PBL13 END | 79.016 |
| HIERARCH ESO ISS PBLA13 START | 48.1 |
| HIERARCH ESO ISS PBLA13 END | 48.0 |
| HIERARCH ESO ISS PBL14 START | 122.644 |
| HIERARCH ESO ISS PBL14 END | 123.587 |
| HIERARCH ESO ISS PBLA14 START | 69.95 |
| HIERARCH ESO ISS PBLA14 END | 69.31 |
| HIERARCH ESO ISS PBL23 START | 38.117 |
| HIERARCH ESO ISS PBL23 END | 38.632 |
| HIERARCH ESO ISS PBLA23 START | 55.1 |
| HIERARCH ESO ISS PBLA23 END | 54.8 |
| HIERARCH ESO ISS PBL24 START | 89.337 |
| HIERARCH ESO ISS PBL24 END | 89.408 |
| HIERARCH ESO ISS PBLA24 START | 82.389 |
| HIERARCH ESO ISS PBLA24 END | 81.592 |
| HIERARCH ESO ISS PBL34 START | 58.149 |
| HIERARCH ESO ISS PBL34 END | 57.599 |
| HIERARCH ESO ISS PBLA34 START | 99.877 |
| HIERARCH ESO ISS PBLA34 END | 99.165 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005269 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005929 |
| HIERARCH ESO ISS AMBI TEMP | 14.39 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.88 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |