(32615) 2001QU277
Object
| Object |
(32615) 2001QU277 |
| Diameter(1) |
38 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
11.16 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
5.146315 ± 0.000000 au |
| Eccentricity |
0.032228625 ± 0.000000021 |
| Inclination |
17.559300461 ± 0.000001050 ° |
| Longitude of ascending node |
100.400962 ± 0.000003 ° |
| Argument of perihelia |
228.161013 ± 0.000034 ° |
| Mean anomaly |
20.776646 ± 0.000039 ° |
| Orbital period |
11.67 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv7 |
| Observation file (documentation) |
omc_ast_NIMAv7.txt |
| bsp file |
32615_2001QU277_nima_v7.bsp |
| Date of first observation |
1977-10-06 |
| Date of last observation |
2025-07-10 |
| Number of observations used in the fit |
3251 |
| Number of rejected observations |
293 |
| Number of DES observations |
7 |
| Number of MPC observations |
3218 |
| Number of unpublished observations |
1 |
| RMS of observations |
0.109 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.022 |
0.004 |
| 2024-07 |
0.035 |
0.008 |
| 2025-01 |
0.028 |
0.006 |
| 2025-07 |
0.033 |
0.015 |
| 2026-01 |
0.032 |
0.013 |
| 2026-07 |
0.031 |
0.015 |
| 2027-01 |
0.036 |
0.018 |
| 2027-07 |
0.029 |
0.013 |
| 2028-01 |
0.040 |
0.017 |
Ephemeris comparison
Difference between NIMAv7 and JPL56 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