(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 | 11.13 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 5.155837 ± 0.000000 au |
| Eccentricity | 0.033620669 ± 0.000000022 |
| Inclination | 17.551632356 ± 0.000001053 ° |
| Longitude of ascending node | 100.400917 ± 0.000003 ° |
| Argument of perihelia | 226.881890 ± 0.000037 ° |
| Mean anomaly | 297.729911 ± 0.000042 ° |
| Orbital period | 11.71 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 32615_2001QU277_nima_v5.bsp |
| Date of first observation | 1977-10-06 |
| Date of last observation | 2023-06-17 |
| Number of observations used in the fit | 2560 |
| Number of rejected observations | 293 |
| Number of DES observations | 7 |
| Number of MPC observations | 2527 |
| Number of unpublished observations | 1 |
| RMS of observations | 0.109 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.019 | 0.006 |
| 2023-07 | 0.035 | 0.007 |
| 2024-01 | 0.027 | 0.004 |
| 2024-07 | 0.043 | 0.010 |
| 2025-01 | 0.034 | 0.007 |
| 2025-07 | 0.041 | 0.018 |
| 2026-01 | 0.039 | 0.016 |
| 2026-07 | 0.037 | 0.019 |
| 2027-01 | 0.043 | 0.021 |
Ephemeris comparison
Difference between NIMAv5 and JPL44 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.