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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 45 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1964196317040915 | 3.8568e-08 | |
| a | 2.248525297364337 | 6.5969e-09 | au |
| q | 1.806870786578701 | 8.7642e-08 | au |
| i | 6.842806826250105 | 4.0271e-06 | deg |
| node | 22.47898851464032 | 3.2173e-05 | deg |
| peri | 303.5247793380802 | 3.338e-05 | deg |
| M | 149.1686541384453 | 1.0212e-05 | deg |
| tp | 2458490.206349511094
(2019-Jan-06.70634951) | 3.4117e-05 | TDB |
| period | 1231.530278509495
3.37 | 5.4197e-06
1.484e-08 | d
yr |
| n | .2923192440186719 | 1.2864e-09 | deg/d |
| Q | 2.690179808149974 | 7.8927e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.5 |
|
n/a |
MPO350817 |
|
| diameter |
diameter |
8.628 |
km |
0.113 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| geometric albedo |
albedo |
0.180 |
|
0.017 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 2243 Lonnrot (1941 SA1) Discovered 1941-Sep-25 by Vaisala, Y. at Turku |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
| 1941 SA1 = 1931 VB = 1934 NQ = 1951 QH = 1951 RQ1 = 1951 SF = 1961 OB |
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