(32615) 2001QU277
This object has a more recent orbit available here
Object
| Object | (32615) 2001QU277 |
| Diameter(1) | 38 km |
| Dynamic class(1) | trojan |
| Absolute magnitude | 11.17 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 5.148402 ± 0.000000 au |
| Eccentricity | 0.032605069 ± 0.000000022 |
| Inclination | 17.559679620 ± 0.000001053 ° |
| Longitude of ascending node | 100.403889 ± 0.000003 ° |
| Argument of perihelia | 228.327072 ± 0.000037 ° |
| Mean anomaly | 3.729579 ± 0.000043 ° |
| Orbital period | 11.68 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 32615_2001QU277_nima_v6.bsp |
| Date of first observation | 1977-10-06 |
| Date of last observation | 2024-07-07 |
| Number of observations used in the fit | 2873 |
| Number of rejected observations | 293 |
| Number of DES observations | 7 |
| Number of MPC observations | 2840 |
| Number of unpublished observations | 1 |
| RMS of observations | 0.109 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.025 | 0.004 |
| 2024-07 | 0.040 | 0.009 |
| 2025-01 | 0.032 | 0.007 |
| 2025-07 | 0.038 | 0.017 |
| 2026-01 | 0.037 | 0.015 |
| 2026-07 | 0.035 | 0.017 |
| 2027-01 | 0.041 | 0.020 |
| 2027-07 | 0.033 | 0.014 |
| 2028-01 | 0.045 | 0.019 |
Ephemeris comparison
Difference between NIMAv6 and JPL51 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.