Exposure
- ID
- GRAVI.2022-01-26T01:28:19.894_2
- Header ID
- GRAVI.2022-01-26T01:28:19.894
- Date updated
- 2022-01-26 01:45:46 UTC+0000
- Release date
- 2023-01-26 01:45:46 UTC+0000
- UTC Start
- 2022-01-26 01:28:19.894
- UTC End
- 2022-01-26 01:34:19.894
- MJD Start
- 59605.06134136
- MJD End
- 59605.0655080267
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0037745
- Ambient temperature (°C)
- 14.43
- Seeing (arcsec)
- 0.89
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
- 73.9410208333333
- 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 | 39.2660 | 39.8970 | 41.0000 | 41.3000 |
| U1-U3 | 75.9020 | 77.1050 | 48.1000 | 48.1000 |
| U1-U4 | 120.9670 | 122.0150 | 70.9820 | 70.3520 |
| U2-U3 | 37.2420 | 37.7830 | 55.5000 | 55.3000 |
| U2-U4 | 89.1160 | 89.2670 | 83.6830 | 82.8910 |
| U3-U4 | 58.9760 | 58.4800 | 101.0380 | 100.3270 |
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 | 59605.06134136 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942962 |
| DEC | 30.55095 |
| 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 | 39.266 |
| HIERARCH ESO ISS PBL12 END | 39.897 |
| HIERARCH ESO ISS PBLA12 START | 41.0 |
| HIERARCH ESO ISS PBLA12 END | 41.3 |
| HIERARCH ESO ISS PBL13 START | 75.902 |
| HIERARCH ESO ISS PBL13 END | 77.105 |
| HIERARCH ESO ISS PBLA13 START | 48.1 |
| HIERARCH ESO ISS PBLA13 END | 48.1 |
| HIERARCH ESO ISS PBL14 START | 120.967 |
| HIERARCH ESO ISS PBL14 END | 122.015 |
| HIERARCH ESO ISS PBLA14 START | 70.982 |
| HIERARCH ESO ISS PBLA14 END | 70.352 |
| HIERARCH ESO ISS PBL23 START | 37.242 |
| HIERARCH ESO ISS PBL23 END | 37.783 |
| HIERARCH ESO ISS PBLA23 START | 55.5 |
| HIERARCH ESO ISS PBLA23 END | 55.3 |
| HIERARCH ESO ISS PBL24 START | 89.116 |
| HIERARCH ESO ISS PBL24 END | 89.267 |
| HIERARCH ESO ISS PBLA24 START | 83.683 |
| HIERARCH ESO ISS PBLA24 END | 82.891 |
| HIERARCH ESO ISS PBL34 START | 58.976 |
| HIERARCH ESO ISS PBL34 END | 58.48 |
| HIERARCH ESO ISS PBLA34 START | 101.038 |
| HIERARCH ESO ISS PBLA34 END | 100.327 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003912 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003637 |
| HIERARCH ESO ISS AMBI TEMP | 14.43 |
| HIERARCH ESO ISS AMBI FWHM START | 0.89 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |