Exposure
- ID
- GRAVI.2025-05-13T09:01:35.118_2
- Header ID
- GRAVI.2025-05-13T09:01:35.118
- Date updated
- 2025-05-13 09:20:55 UTC+0000
- Release date
- 2026-05-13 09:20:55 UTC+0000
- UTC Start
- 2025-05-13 09:01:35.118
- UTC End
- 2025-05-13 09:07:35.118
- MJD Start
- 60808.3761009
- MJD End
- 60808.38026756667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.020714
- Ambient temperature (°C)
- 16.27
- Seeing (arcsec)
- 0.195
Observation
- ID
- 67241
- Category
- science
- Program ID
- 115.27WT.001
- Program Title
- THE GALACTIC CENTER WITH GRAVITY(+) - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
- ID
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 53.9460 | 53.6890 | 36.4000 | 36.8000 |
| U1-U3 | 96.4990 | 95.9070 | 42.7000 | 43.1000 |
| U1-U4 | 117.1760 | 115.8020 | 72.4420 | 73.0180 |
| U2-U3 | 43.2880 | 42.9470 | 50.6000 | 51.0000 |
| U2-U4 | 80.0900 | 79.0880 | 95.7720 | 96.6360 |
| U3-U4 | 58.3090 | 57.8610 | 127.5380 | 128.6700 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60808.3761009 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416485 |
| DEC | -29.0075 |
| HIERARCH ESO INS SPEC RES | LOW |
| HIERARCH ESO INS POLA MODE | SPLIT |
| 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 | 389.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 53.946 |
| HIERARCH ESO ISS PBL12 END | 53.689 |
| HIERARCH ESO ISS PBLA12 START | 36.4 |
| HIERARCH ESO ISS PBLA12 END | 36.8 |
| HIERARCH ESO ISS PBL13 START | 96.499 |
| HIERARCH ESO ISS PBL13 END | 95.907 |
| HIERARCH ESO ISS PBLA13 START | 42.7 |
| HIERARCH ESO ISS PBLA13 END | 43.1 |
| HIERARCH ESO ISS PBL14 START | 117.176 |
| HIERARCH ESO ISS PBL14 END | 115.802 |
| HIERARCH ESO ISS PBLA14 START | 72.442 |
| HIERARCH ESO ISS PBLA14 END | 73.018 |
| HIERARCH ESO ISS PBL23 START | 43.288 |
| HIERARCH ESO ISS PBL23 END | 42.947 |
| HIERARCH ESO ISS PBLA23 START | 50.6 |
| HIERARCH ESO ISS PBLA23 END | 51.0 |
| HIERARCH ESO ISS PBL24 START | 80.09 |
| HIERARCH ESO ISS PBL24 END | 79.088 |
| HIERARCH ESO ISS PBLA24 START | 95.772 |
| HIERARCH ESO ISS PBLA24 END | 96.636 |
| HIERARCH ESO ISS PBL34 START | 58.309 |
| HIERARCH ESO ISS PBL34 END | 57.861 |
| HIERARCH ESO ISS PBLA34 START | 127.538 |
| HIERARCH ESO ISS PBLA34 END | 128.67 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.019376 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.022052 |
| HIERARCH ESO ISS AMBI TEMP | 16.27 |
| HIERARCH ESO ISS AMBI FWHM START | 0.2 |
| HIERARCH ESO ISS AMBI FWHM END | 0.19 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |