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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1881206755039846 | 2.6601e-08 | |
| a | 2.243614610778828 | 5.3509e-09 | au |
| q | 1.821544314628505 | 5.8862e-08 | au |
| i | 3.47390688497445 | 3.7302e-06 | deg |
| node | 217.4233543157779 | 4.9491e-05 | deg |
| peri | 91.01715523461334 | 5.0663e-05 | deg |
| M | 19.08287696792089 | 1.0913e-05 | deg |
| tp | 2458935.432792909088
(2020-Mar-26.93279291) | 3.7117e-05 | TDB |
| period | 1227.498064998549
3.36 | 4.3913e-06
1.202e-08 | d
yr |
| n | .2932794847219784 | 1.0492e-09 | deg/d |
| Q | 2.66568490692915 | 6.3575e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.4 |
|
n/a |
MPO384988 |
|
| diameter |
diameter |
3.254 |
km |
0.482 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
3.499 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] |
| geometric albedo |
albedo |
0.349 |
|
0.144 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
|
| 28353 Chrisnielsen | Discovered 1999 Mar. 19 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Christopher Stephen Nielsen (b. 1993) was awarded first place in the 2011 Intel International Science and Engineering Fair for his electrical and mechanical engineering project. He is home-schooled in Calgary, Alberta, Canada. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20121029/MPCPages.arc | Last Updated: 2013-03-29 |
|
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Alternate Designations
| 1999 FH32 = 1986 OE = 2000 UM9 |
|
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