[ hide orbit diagram ]
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 28 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1157989103449273 | 3.5493e-08 | |
| a | 2.566470420642749 | 1.0633e-08 | au |
| q | 2.269275942499831 | 9.0312e-08 | au |
| i | 15.17607344828257 | 3.5974e-06 | deg |
| node | 150.7013976235463 | 1.7126e-05 | deg |
| peri | 134.4317065049911 | 2.4532e-05 | deg |
| M | 142.8963230907646 | 1.8556e-05 | deg |
| tp | 2458404.396907430131
(2018-Oct-12.89690743) | 7.6749e-05 | TDB |
| period | 1501.767915951522
4.11 | 9.3331e-06
2.555e-08 | d
yr |
| n | .2397174664448092 | 1.4898e-09 | deg/d |
| Q | 2.863664898785666 | 1.1865e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.6 |
|
n/a |
MPO502605 |
|
| diameter |
diameter |
3.020 |
km |
0.576 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.405 |
|
0.085 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 74098 (1998 QA21) Discovered 1998-Aug-17 by LINEAR at Socorro |
| Reference: 20040415/Numbers.arc | Last Updated: 2004-04-19 |
|
[ show close-approach data ]
|
