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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08331464777832841 | 3.966e-08 | |
| a | 3.022826279379778 | 1.2303e-08 | au |
| q | 2.770980572618177 | 1.2128e-07 | au |
| i | 8.619586424878753 | 4.3073e-06 | deg |
| node | 269.2181297085655 | 2.7935e-05 | deg |
| peri | 139.7256212048679 | 3.8252e-05 | deg |
| M | 32.62152102043265 | 2.4806e-05 | deg |
| tp | 2458826.551809012875
(2019-Dec-09.05180901) | 0.00013233 | TDB |
| period | 1919.633015154067
5.26 | 1.1719e-05
3.208e-08 | d
yr |
| n | .1875358452152413 | 1.1449e-09 | deg/d |
| Q | 3.274671986141379 | 1.3328e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.20 |
|
n/a |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 6 |
| diameter |
diameter |
34.576 |
km |
0.196 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
5.0844 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Carbo, L.; Kragh, K.; Krotz, J.; Meiers, A.; et al. (2009) Minor Planet Bull. 36, 91-94.]
[Ditteon, R.; West, J. (2011) Minor Planet Bull. 38, 214-217.] |
| geometric albedo |
albedo |
0.138 |
|
0.016 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| B-V |
BV |
0.780 |
|
0.020 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=4.11 deg. |
| U-B |
UB |
0.410 |
|
0.020 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=4.11 deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices; used ground-based radiometric albedo |
|
| 1129 Neujmina (1929 PH) Discovered 1929-Aug-08 by Parchomenko, P. at Simeis |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1929 PH = 1926 AE = A914 WE |
|
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