Exposure
- ID
- GRAVI.2025-05-13T09:31:44.195_2
- Header ID
- GRAVI.2025-05-13T09:31:44.195
- Date updated
- 2025-05-13 09:50:42 UTC+0000
- Release date
- 2026-05-13 09:50:42 UTC+0000
- UTC Start
- 2025-05-13 09:31:44.195
- UTC End
- 2025-05-13 09:37:44.195
- MJD Start
- 60808.39703929
- MJD End
- 60808.40120595667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0127705
- Ambient temperature (°C)
- 16.37
- Seeing (arcsec)
- 0.26
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 | 52.6250 | 52.3020 | 38.2000 | 38.6000 |
| U1-U3 | 93.4610 | 92.7220 | 44.5000 | 44.8000 |
| U1-U4 | 110.1810 | 108.4980 | 75.0870 | 75.6390 |
| U2-U3 | 41.5440 | 41.1220 | 52.4000 | 52.7000 |
| U2-U4 | 75.0310 | 73.8320 | 99.9590 | 100.9110 |
| U3-U4 | 56.1120 | 55.6150 | 133.0750 | 134.3440 |
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 | 60808.39703929 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416487 |
| DEC | -29.00751 |
| 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 | 52.625 |
| HIERARCH ESO ISS PBL12 END | 52.302 |
| HIERARCH ESO ISS PBLA12 START | 38.2 |
| HIERARCH ESO ISS PBLA12 END | 38.6 |
| HIERARCH ESO ISS PBL13 START | 93.461 |
| HIERARCH ESO ISS PBL13 END | 92.722 |
| HIERARCH ESO ISS PBLA13 START | 44.5 |
| HIERARCH ESO ISS PBLA13 END | 44.8 |
| HIERARCH ESO ISS PBL14 START | 110.181 |
| HIERARCH ESO ISS PBL14 END | 108.498 |
| HIERARCH ESO ISS PBLA14 START | 75.087 |
| HIERARCH ESO ISS PBLA14 END | 75.639 |
| HIERARCH ESO ISS PBL23 START | 41.544 |
| HIERARCH ESO ISS PBL23 END | 41.122 |
| HIERARCH ESO ISS PBLA23 START | 52.4 |
| HIERARCH ESO ISS PBLA23 END | 52.7 |
| HIERARCH ESO ISS PBL24 START | 75.031 |
| HIERARCH ESO ISS PBL24 END | 73.832 |
| HIERARCH ESO ISS PBLA24 START | 99.959 |
| HIERARCH ESO ISS PBLA24 END | 100.911 |
| HIERARCH ESO ISS PBL34 START | 56.112 |
| HIERARCH ESO ISS PBL34 END | 55.615 |
| HIERARCH ESO ISS PBLA34 START | 133.075 |
| HIERARCH ESO ISS PBLA34 END | 134.344 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.010841 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.0147 |
| HIERARCH ESO ISS AMBI TEMP | 16.37 |
| HIERARCH ESO ISS AMBI FWHM START | 0.28 |
| HIERARCH ESO ISS AMBI FWHM END | 0.24 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |