Exposure
- ID
- GRAVI.2024-07-24T23:43:06.430_2
- Header ID
- GRAVI.2024-07-24T23:43:06.430
- Date updated
- 2024-07-24 23:50:38 UTC+0000
- Release date
- 2025-07-24 23:50:37 UTC+0000
- UTC Start
- 2024-07-24 23:43:06.430
- UTC End
- 2024-07-24 23:45:06.430
- MJD Start
- 60515.98826886
- MJD End
- 60515.9896577489
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0027245
- Ambient temperature (°C)
- 13.36
- Seeing (arcsec)
- 0.985
Observation
- ID
- 60168
- Category
- science
- Program ID
- 113.268P.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
- ID
- 44671
- Name
- IRS16C
- RA
- 266.417081666667
- DEC
- -29.0076816388889
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 | 56.2850 | 56.2900 | 6.5000 | 6.8000 |
| U1-U3 | 101.1310 | 101.1590 | 11.8000 | 12.2000 |
| U1-U4 | 119.6690 | 119.9290 | 37.1980 | 37.6270 |
| U2-U3 | 45.3920 | 45.4200 | 18.5000 | 18.8000 |
| U2-U4 | 76.8380 | 77.1660 | 59.1510 | 59.5620 |
| U3-U4 | 51.7240 | 52.0150 | 94.0580 | 94.3010 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60515.98826886 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | IRS16NW |
| RA | 266.41691 |
| DEC | -29.00739 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| 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 | 135.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 56.285 |
| HIERARCH ESO ISS PBL12 END | 56.29 |
| HIERARCH ESO ISS PBLA12 START | 6.5 |
| HIERARCH ESO ISS PBLA12 END | 6.8 |
| HIERARCH ESO ISS PBL13 START | 101.131 |
| HIERARCH ESO ISS PBL13 END | 101.159 |
| HIERARCH ESO ISS PBLA13 START | 11.8 |
| HIERARCH ESO ISS PBLA13 END | 12.2 |
| HIERARCH ESO ISS PBL14 START | 119.669 |
| HIERARCH ESO ISS PBL14 END | 119.929 |
| HIERARCH ESO ISS PBLA14 START | 37.198 |
| HIERARCH ESO ISS PBLA14 END | 37.627 |
| HIERARCH ESO ISS PBL23 START | 45.392 |
| HIERARCH ESO ISS PBL23 END | 45.42 |
| HIERARCH ESO ISS PBLA23 START | 18.5 |
| HIERARCH ESO ISS PBLA23 END | 18.8 |
| HIERARCH ESO ISS PBL24 START | 76.838 |
| HIERARCH ESO ISS PBL24 END | 77.166 |
| HIERARCH ESO ISS PBLA24 START | 59.151 |
| HIERARCH ESO ISS PBLA24 END | 59.562 |
| HIERARCH ESO ISS PBL34 START | 51.724 |
| HIERARCH ESO ISS PBL34 END | 52.015 |
| HIERARCH ESO ISS PBLA34 START | 94.058 |
| HIERARCH ESO ISS PBLA34 END | 94.301 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002911 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002538 |
| HIERARCH ESO ISS AMBI TEMP | 13.36 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 0.97 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0996 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6539 |