(307982) 2004PG115


Object

Object (307982) 2004PG115
Diameter(1) 334 km
Dynamic class(1) SDO
Absolute magnitude 4.98
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460800.5
Semi major axis 90.382835 ± 0.007018 au
Eccentricity 0.596577627 ± 0.000028650
Inclination 16.262217373 ± 0.000012255 °
Longitude of ascending node 230.555114 ± 0.000117 °
Argument of perihelia 75.930172 ± 0.000833 °
Mean anomaly 9.160454 ± 0.001209 °
Orbital period 859.28 yr

Ephemeris & Observations

Ephemeris version NIMAv7
Observation file (documentation) omc_ast_NIMAv7.txt
bsp file 307982_2004PG115_nima_v7.bsp
Date of first observation 2002-06-10
Date of last observation 2025-07-01
Number of observations used in the fit 585
Number of rejected observations 8
Number of DES observations 0
Number of MPC observations 583
Number of unpublished observations 10
RMS of observations 0.190 arcsec

Residuals

residual plot

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 0.052 0.033
2024-07 0.039 0.022
2025-01 0.055 0.034
2025-07 0.051 0.026
2026-01 0.059 0.036
2026-07 0.065 0.031
2027-01 0.066 0.037
2027-07 0.080 0.035
2028-01 0.075 0.040

Ephemeris comparison

residual plot

Difference between NIMAv7 and JPL29 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