Exposure
- ID
- GRAVI.2025-08-11T02:43:09.554_2
- Header ID
- GRAVI.2025-08-11T02:43:09.554
- Date updated
- 2025-08-11 02:50:45 UTC+0000
- Release date
- 2025-08-11 02:43:09 UTC+0000
- UTC Start
- 2025-08-11 02:43:09.554
- UTC End
- 2025-08-11 02:44:45.554
- MJD Start
- 60898.11330502
- MJD End
- 60898.11441613111
- Exposure time (s)
- 96.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0029195
- Ambient temperature (°C)
- 14.33
- Seeing (arcsec)
- 0.685
Observation
- ID
- 69849
- Category
- calibrator
- Program ID
- 114.28MC.001
- Program Title
- UNVEILING HIDDEN PROTOPLANETS: DIRECT EXTINCTION MEASUREMENT IN THE PLANET-FORMED GAP OF AS209
- Program Type
- ToO
- PI / COI
- CUGNO / BOURDAROT / BENISTY / TEAGUE / FACCHINI / GIRARD / BERGIN / BAE / HUANG / MEYER
Target
- ID
- 51850
- Name
- HD174536A
- RA
- 282.9042875
- DEC
- -17.310118333333335
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 | 56.4510 | 56.4640 | 28.8000 | 29.0000 |
| U1-U3 | 102.3350 | 102.3540 | 35.1000 | 35.2000 |
| U1-U4 | 130.1140 | 130.0760 | 62.7110 | 62.8410 |
| U2-U3 | 46.6300 | 46.6350 | 42.7000 | 42.8000 |
| U2-U4 | 89.0240 | 88.9560 | 83.4310 | 83.5650 |
| U3-U4 | 61.7450 | 61.6750 | 112.9830 | 113.1490 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 114.28MC.001 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60898.11330502 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | hd174536 |
| HIERARCH ESO INS SOBJ NAME | HD174536B |
| RA | 282.906109 |
| DEC | -17.31036 |
| 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 | 114.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 3.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 56.451 |
| HIERARCH ESO ISS PBL12 END | 56.464 |
| HIERARCH ESO ISS PBLA12 START | 28.8 |
| HIERARCH ESO ISS PBLA12 END | 29.0 |
| HIERARCH ESO ISS PBL13 START | 102.335 |
| HIERARCH ESO ISS PBL13 END | 102.354 |
| HIERARCH ESO ISS PBLA13 START | 35.1 |
| HIERARCH ESO ISS PBLA13 END | 35.2 |
| HIERARCH ESO ISS PBL14 START | 130.114 |
| HIERARCH ESO ISS PBL14 END | 130.076 |
| HIERARCH ESO ISS PBLA14 START | 62.711 |
| HIERARCH ESO ISS PBLA14 END | 62.841 |
| HIERARCH ESO ISS PBL23 START | 46.63 |
| HIERARCH ESO ISS PBL23 END | 46.635 |
| HIERARCH ESO ISS PBLA23 START | 42.7 |
| HIERARCH ESO ISS PBLA23 END | 42.8 |
| HIERARCH ESO ISS PBL24 START | 89.024 |
| HIERARCH ESO ISS PBL24 END | 88.956 |
| HIERARCH ESO ISS PBLA24 START | 83.431 |
| HIERARCH ESO ISS PBLA24 END | 83.565 |
| HIERARCH ESO ISS PBL34 START | 61.745 |
| HIERARCH ESO ISS PBL34 END | 61.675 |
| HIERARCH ESO ISS PBLA34 START | 112.983 |
| HIERARCH ESO ISS PBLA34 END | 113.149 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002828 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003011 |
| HIERARCH ESO ISS AMBI TEMP | 14.33 |
| HIERARCH ESO ISS AMBI FWHM START | 0.67 |
| HIERARCH ESO ISS AMBI FWHM END | 0.7 |
| HIERARCH ESO FT ROBJ NAME | HD174536A |
| HIERARCH ESO FT ROBJ ALPHA | 185137.029 |
| HIERARCH ESO FT ROBJ DELTA | -171836.426 |