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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .161831759831071 | 3.36e-08 | |
| a | 2.353303606076178 | 6.8559e-09 | au |
| q | 1.972464342088065 | 8.0308e-08 | au |
| i | 6.028401082431263 | 3.7257e-06 | deg |
| node | 224.6995646282805 | 3.095e-05 | deg |
| peri | 123.1597311163471 | 3.2511e-05 | deg |
| M | 284.9897035902579 | 1.0592e-05 | deg |
| tp | 2459671.247499250875
(2022-Apr-01.74749925) | 3.9154e-05 | TDB |
| period | 1318.606970835395
3.61 | 5.7623e-06
1.578e-08 | d
yr |
| n | .2730153927306513 | 1.1931e-09 | deg/d |
| Q | 2.734142870064292 | 7.9655e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.27 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
3.988 |
km |
0.172 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.279 |
|
0.062 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 21614 Grochowski | Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Julia Caroline Grochowski (b. 1988) was awarded second place in the 2005 Intel International Science and Engineering Fair for her medicine and health team project. She attends the Archbishop MacDonald High School, Edmonton, 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: 20050822/MPCPages.arc | Last Updated: 2005-08-26 |
|
Alternate Designations
| 1999 JW75 = 1971 SF2 = 1978 NY2 |
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