Exposure
- ID
- GRAVI.2025-04-10T01:14:57.030_2
- Header ID
- GRAVI.2025-04-10T01:14:57.030
- Date updated
- 2025-04-10 01:20:44 UTC+0000
- Release date
- 2025-04-10 01:14:57 UTC+0000
- UTC Start
- 2025-04-10 01:14:57.030
- UTC End
- 2025-04-10 01:16:17.030
- MJD Start
- 60775.05204896
- MJD End
- 60775.052974885926
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006295
- Ambient temperature (°C)
- 13.91
- Seeing (arcsec)
- 0.41
Observation
- ID
- 66163
- Category
- calibrator
- Program ID
- 60.A-9801(U)
- Program Title
- TECHNICAL TIME
- Program Type
- Normal
- PI / COI
- OBSERVATORY
Target
- ID
- 48417
- Name
- hd91881a
- RA
- 159.01878749999997
- DEC
- -26.675483055555556
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 | 56.5090 | 56.5140 | 20.4000 | 20.6000 |
| U1-U3 | 102.2280 | 102.2450 | 26.6000 | 26.8000 |
| U1-U4 | 128.8500 | 128.9380 | 54.4150 | 54.6130 |
| U2-U3 | 46.4600 | 46.4730 | 34.2000 | 34.4000 |
| U2-U4 | 87.9170 | 88.0090 | 75.5070 | 75.6920 |
| U3-U4 | 61.2550 | 61.3230 | 105.5570 | 105.7090 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 60.A-9801(U) |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60775.05204896 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | hd91881b |
| HIERARCH ESO INS SOBJ NAME | hd91881b |
| RA | 159.020771 |
| DEC | -26.67609 |
| 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 | 95.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 8 |
| HIERARCH ESO ISS PBL12 START | 56.509 |
| HIERARCH ESO ISS PBL12 END | 56.514 |
| HIERARCH ESO ISS PBLA12 START | 20.4 |
| HIERARCH ESO ISS PBLA12 END | 20.6 |
| HIERARCH ESO ISS PBL13 START | 102.228 |
| HIERARCH ESO ISS PBL13 END | 102.245 |
| HIERARCH ESO ISS PBLA13 START | 26.6 |
| HIERARCH ESO ISS PBLA13 END | 26.8 |
| HIERARCH ESO ISS PBL14 START | 128.85 |
| HIERARCH ESO ISS PBL14 END | 128.938 |
| HIERARCH ESO ISS PBLA14 START | 54.415 |
| HIERARCH ESO ISS PBLA14 END | 54.613 |
| HIERARCH ESO ISS PBL23 START | 46.46 |
| HIERARCH ESO ISS PBL23 END | 46.473 |
| HIERARCH ESO ISS PBLA23 START | 34.2 |
| HIERARCH ESO ISS PBLA23 END | 34.4 |
| HIERARCH ESO ISS PBL24 START | 87.917 |
| HIERARCH ESO ISS PBL24 END | 88.009 |
| HIERARCH ESO ISS PBLA24 START | 75.507 |
| HIERARCH ESO ISS PBLA24 END | 75.692 |
| HIERARCH ESO ISS PBL34 START | 61.255 |
| HIERARCH ESO ISS PBL34 END | 61.323 |
| HIERARCH ESO ISS PBLA34 START | 105.557 |
| HIERARCH ESO ISS PBLA34 END | 105.709 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006295 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006295 |
| HIERARCH ESO ISS AMBI TEMP | 13.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.41 |
| HIERARCH ESO ISS AMBI FWHM END | 0.41 |
| HIERARCH ESO FT ROBJ NAME | hd91881a |
| HIERARCH ESO FT ROBJ ALPHA | 103604.509 |
| HIERARCH ESO FT ROBJ DELTA | -264031.739 |