Exposure
- ID
- GRAVI.2025-08-11T01:44:51.405_2
- Header ID
- GRAVI.2025-08-11T01:44:51.405
- Date updated
- 2025-08-11 02:00:41 UTC+0000
- Release date
- 2026-08-11 02:00:40 UTC+0000
- UTC Start
- 2025-08-11 01:44:51.405
- UTC End
- 2025-08-11 01:51:31.405
- MJD Start
- 60898.07281719
- MJD End
- 60898.077446819625
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0058015
- Ambient temperature (°C)
- 14.16
- Seeing (arcsec)
- 0.7849999999999999
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 | 56.5250 | 56.4860 | 33.4000 | 33.8000 |
| U1-U3 | 102.1140 | 101.9440 | 39.2000 | 39.5000 |
| U1-U4 | 125.8670 | 124.9230 | 65.7090 | 65.9510 |
| U2-U3 | 46.2360 | 46.0950 | 46.3000 | 46.6000 |
| U2-U4 | 83.7410 | 82.7800 | 86.8640 | 87.2640 |
| U3-U4 | 57.1400 | 56.4690 | 118.5890 | 119.3980 |
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 | 60898.07281719 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | EM AS 209 |
| HIERARCH ESO INS SOBJ NAME | AS029 |
| RA | 252.316503 |
| 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 | 56.525 |
| HIERARCH ESO ISS PBL12 END | 56.486 |
| HIERARCH ESO ISS PBLA12 START | 33.4 |
| HIERARCH ESO ISS PBLA12 END | 33.8 |
| HIERARCH ESO ISS PBL13 START | 102.114 |
| HIERARCH ESO ISS PBL13 END | 101.944 |
| HIERARCH ESO ISS PBLA13 START | 39.2 |
| HIERARCH ESO ISS PBLA13 END | 39.5 |
| HIERARCH ESO ISS PBL14 START | 125.867 |
| HIERARCH ESO ISS PBL14 END | 124.923 |
| HIERARCH ESO ISS PBLA14 START | 65.709 |
| HIERARCH ESO ISS PBLA14 END | 65.951 |
| HIERARCH ESO ISS PBL23 START | 46.236 |
| HIERARCH ESO ISS PBL23 END | 46.095 |
| HIERARCH ESO ISS PBLA23 START | 46.3 |
| HIERARCH ESO ISS PBLA23 END | 46.6 |
| HIERARCH ESO ISS PBL24 START | 83.741 |
| HIERARCH ESO ISS PBL24 END | 82.78 |
| HIERARCH ESO ISS PBLA24 START | 86.864 |
| HIERARCH ESO ISS PBLA24 END | 87.264 |
| HIERARCH ESO ISS PBL34 START | 57.14 |
| HIERARCH ESO ISS PBL34 END | 56.469 |
| HIERARCH ESO ISS PBLA34 START | 118.589 |
| HIERARCH ESO ISS PBLA34 END | 119.398 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005615 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005988 |
| HIERARCH ESO ISS AMBI TEMP | 14.16 |
| HIERARCH ESO ISS AMBI FWHM START | 0.74 |
| HIERARCH ESO ISS AMBI FWHM END | 0.83 |
| HIERARCH ESO FT ROBJ NAME | AS029 |
| HIERARCH ESO FT ROBJ ALPHA | 164915.303 |
| HIERARCH ESO FT ROBJ DELTA | -142208.643 |