Exposure
- ID
- GRAVI.2025-08-11T01:59:54.444_2
- Header ID
- GRAVI.2025-08-11T01:59:54.444
- Date updated
- 2025-08-11 02:15:35 UTC+0000
- Release date
- 2026-08-11 02:15:35 UTC+0000
- UTC Start
- 2025-08-11 01:59:54.444
- UTC End
- 2025-08-11 02:06:34.444
- MJD Start
- 60898.08326903
- MJD End
- 60898.08789865963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0041655
- Ambient temperature (°C)
- 14.1
- Seeing (arcsec)
- 0.7250000000000001
Observation
- ID
- 69819
- Category
- science
- 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
- 51832
- Name
- AS029
- RA
- 252.31376249999997
- DEC
- -14.3690675
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 | 56.4200 | 56.3460 | 34.2000 | 34.5000 |
| U1-U3 | 101.7010 | 101.4500 | 39.9000 | 40.1000 |
| U1-U4 | 123.7100 | 122.5670 | 66.2080 | 66.4100 |
| U2-U3 | 45.9020 | 45.7130 | 46.9000 | 47.1000 |
| U2-U4 | 81.5720 | 80.4560 | 87.7330 | 88.1390 |
| U3-U4 | 55.6490 | 54.9120 | 120.3850 | 121.2750 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 114.28MC.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60898.08326903 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | EM AS 209 |
| HIERARCH ESO INS SOBJ NAME | AS029 |
| RA | 252.316488 |
| DEC | -14.36883 |
| 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 | 418.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 56.42 |
| HIERARCH ESO ISS PBL12 END | 56.346 |
| HIERARCH ESO ISS PBLA12 START | 34.2 |
| HIERARCH ESO ISS PBLA12 END | 34.5 |
| HIERARCH ESO ISS PBL13 START | 101.701 |
| HIERARCH ESO ISS PBL13 END | 101.45 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 40.1 |
| HIERARCH ESO ISS PBL14 START | 123.71 |
| HIERARCH ESO ISS PBL14 END | 122.567 |
| HIERARCH ESO ISS PBLA14 START | 66.208 |
| HIERARCH ESO ISS PBLA14 END | 66.41 |
| HIERARCH ESO ISS PBL23 START | 45.902 |
| HIERARCH ESO ISS PBL23 END | 45.713 |
| HIERARCH ESO ISS PBLA23 START | 46.9 |
| HIERARCH ESO ISS PBLA23 END | 47.1 |
| HIERARCH ESO ISS PBL24 START | 81.572 |
| HIERARCH ESO ISS PBL24 END | 80.456 |
| HIERARCH ESO ISS PBLA24 START | 87.733 |
| HIERARCH ESO ISS PBLA24 END | 88.139 |
| HIERARCH ESO ISS PBL34 START | 55.649 |
| HIERARCH ESO ISS PBL34 END | 54.912 |
| HIERARCH ESO ISS PBLA34 START | 120.385 |
| HIERARCH ESO ISS PBLA34 END | 121.275 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003616 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004715 |
| HIERARCH ESO ISS AMBI TEMP | 14.1 |
| HIERARCH ESO ISS AMBI FWHM START | 0.77 |
| HIERARCH ESO ISS AMBI FWHM END | 0.68 |
| HIERARCH ESO FT ROBJ NAME | AS029 |
| HIERARCH ESO FT ROBJ ALPHA | 164915.303 |
| HIERARCH ESO FT ROBJ DELTA | -142208.643 |