Exposure
- ID
- GRAVI.2024-07-17T04:03:57.206_2
- Header ID
- GRAVI.2024-07-17T04:03:57.206
- Date updated
- 2024-07-17 04:20:37 UTC+0000
- Release date
- 2025-07-17 04:20:37 UTC+0000
- UTC Start
- 2024-07-17 04:03:57.206
- UTC End
- 2024-07-17 04:09:57.206
- MJD Start
- 60508.16941211
- MJD End
- 60508.1735787767
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00671
- Ambient temperature (°C)
- 17.23
- Seeing (arcsec)
- 0.81
Observation
- ID
- 60139
- 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
- 43560
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816944444
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 | 55.2550 | 55.0840 | 33.4000 | 33.9000 |
| U1-U3 | 99.5360 | 99.1390 | 39.8000 | 40.3000 |
| U1-U4 | 124.2700 | 123.3400 | 68.6320 | 69.2520 |
| U2-U3 | 45.0400 | 44.8100 | 47.6000 | 48.1000 |
| U2-U4 | 85.3190 | 84.6300 | 90.5720 | 91.3650 |
| U3-U4 | 60.7210 | 60.3980 | 120.9590 | 121.9320 |
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 | 60508.16941211 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416869 |
| DEC | -29.00738 |
| 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 | 55.255 |
| HIERARCH ESO ISS PBL12 END | 55.084 |
| HIERARCH ESO ISS PBLA12 START | 33.4 |
| HIERARCH ESO ISS PBLA12 END | 33.9 |
| HIERARCH ESO ISS PBL13 START | 99.536 |
| HIERARCH ESO ISS PBL13 END | 99.139 |
| HIERARCH ESO ISS PBLA13 START | 39.8 |
| HIERARCH ESO ISS PBLA13 END | 40.3 |
| HIERARCH ESO ISS PBL14 START | 124.27 |
| HIERARCH ESO ISS PBL14 END | 123.34 |
| HIERARCH ESO ISS PBLA14 START | 68.632 |
| HIERARCH ESO ISS PBLA14 END | 69.252 |
| HIERARCH ESO ISS PBL23 START | 45.04 |
| HIERARCH ESO ISS PBL23 END | 44.81 |
| HIERARCH ESO ISS PBLA23 START | 47.6 |
| HIERARCH ESO ISS PBLA23 END | 48.1 |
| HIERARCH ESO ISS PBL24 START | 85.319 |
| HIERARCH ESO ISS PBL24 END | 84.63 |
| HIERARCH ESO ISS PBLA24 START | 90.572 |
| HIERARCH ESO ISS PBLA24 END | 91.365 |
| HIERARCH ESO ISS PBL34 START | 60.721 |
| HIERARCH ESO ISS PBL34 END | 60.398 |
| HIERARCH ESO ISS PBLA34 START | 120.959 |
| HIERARCH ESO ISS PBLA34 END | 121.932 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006636 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006784 |
| HIERARCH ESO ISS AMBI TEMP | 17.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.88 |
| HIERARCH ESO ISS AMBI FWHM END | 0.74 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |