(19844) 2000ST317
Object
| Object |
(19844) 2000ST317 |
| Diameter(1) |
39 km |
| Dynamic class(1) |
trojan |
| Absolute magnitude |
11.15 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
5.197801 ± 0.000000 au |
| Eccentricity |
0.050223979 ± 0.000000046 |
| Inclination |
40.423060981 ± 0.000007801 ° |
| Longitude of ascending node |
207.541297 ± 0.000008 ° |
| Argument of perihelia |
105.924938 ± 0.000091 ° |
| Mean anomaly |
77.130740 ± 0.000087 ° |
| Orbital period |
11.85 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv6 |
| Observation file (documentation) |
omc_ast_NIMAv6.txt |
| bsp file |
19844_2000ST317_nima_v6.bsp |
| Date of first observation |
1951-07-08 |
| Date of last observation |
2025-02-20 |
| Number of observations used in the fit |
3098 |
| Number of rejected observations |
136 |
| Number of DES observations |
28 |
| Number of MPC observations |
3206 |
| Number of unpublished observations |
0 |
| RMS of observations |
0.389 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 |
0.029 |
0.024 |
| 2024-07 |
0.029 |
0.023 |
| 2025-01 |
0.032 |
0.022 |
| 2025-07 |
0.031 |
0.020 |
| 2026-01 |
0.040 |
0.026 |
| 2026-07 |
0.037 |
0.022 |
| 2027-01 |
0.051 |
0.032 |
| 2027-07 |
0.043 |
0.024 |
| 2028-01 |
0.060 |
0.034 |
Ephemeris comparison
Difference between NIMAv6 and JPL53 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