(470308) 2007JH43


Object

Object (470308) 2007JH43
Diameter(1) 527 km
Dynamic class(1) plutino
Absolute magnitude 4.82
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460600.5
Semi major axis 39.265626 ± 0.000806 au
Eccentricity 0.032967746 ± 0.000015946
Inclination 18.206292067 ± 0.000026930 °
Longitude of ascending node 64.632039 ± 0.000017 °
Argument of perihelia 0.123557 ± 0.008238 °
Mean anomaly 193.994030 ± 0.008927 °
Orbital period 246.05 yr

Ephemeris & Observations

Ephemeris version NIMAv9
Observation file (documentation) omc_ast_NIMAv9.txt
bsp file 470308_2007JH43_nima_v9.bsp
Date of first observation 1984-03-07
Date of last observation 2024-06-02
Number of observations used in the fit 290
Number of rejected observations 2
Number of DES observations 0
Number of MPC observations 242
Number of unpublished observations 50
RMS of observations 0.145 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2024-01 0.010 0.010
2024-07 0.025 0.011
2025-01 0.014 0.011
2025-07 0.023 0.013
2026-01 0.021 0.013
2026-07 0.024 0.016
2027-01 0.031 0.017
2027-07 0.030 0.021
2028-01 0.043 0.020

Ephemeris comparison

residual plot

Difference between NIMAv9 and JPL9 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