(32615) 2001QU277
Object
| Object |
(32615) 2001QU277 |
| Diameter(1) |
38 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
11.00 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2458600.5 |
| Semi major axis |
5.167892 ± 0.000001 au |
| Eccentricity |
0.032380750 ± 0.000000123 |
| Inclination |
17.545661861 ± 0.000002455 ° |
| Longitude of ascending node |
100.417817 ± 0.000030 ° |
| Argument of perihelia |
223.797909 ± 0.000255 ° |
| Mean anomaly |
199.890423 ± 0.000249 ° |
| Orbital period |
11.75 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv3 |
| Observation file (documentation) |
omc_ast_NIMAv3.txt |
| bsp file |
32615_2001QU277_nima_v3.bsp |
| Date of first observation |
1977-10-06 |
| Date of last observation |
2020-08-16 |
| Number of observations used in the fit |
1324 |
| Number of rejected observations |
3 |
| Number of DES observations |
7 |
| Number of MPC observations |
1319 |
| Number of unpublished observations |
1 |
| RMS of observations |
0.437 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2021-01 |
0.021 |
0.017 |
| 2021-07 |
0.030 |
0.028 |
| 2022-01 |
0.038 |
0.028 |
| 2022-07 |
0.061 |
0.045 |
| 2023-01 |
0.053 |
0.031 |
| 2023-07 |
0.089 |
0.044 |
| 2024-01 |
0.064 |
0.026 |
| 2024-07 |
0.090 |
0.034 |
| 2025-01 |
0.069 |
0.020 |
Ephemeris comparison
Difference between NIMAv3 and JPL35 in right ascension (weighted by cos δ) and in declination.
Gray area represents the 1-σ uncertainty of NIMA ephemeris. Green dots represent the DES observations.
Previous NIMA versions