[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1805224279535571 | 1.816e-08 | |
a | 2.642133466536185 | 1.066e-08 | au |
q | 2.165169118179724 | 4.5564e-08 | au |
i | 13.43007493226388 | 9.1013e-07 | deg |
node | 293.3170390413327 | 3.5128e-06 | deg |
peri | 7.292416952994104 | 8.8443e-06 | deg |
M | 68.03015025644002 | 6.6846e-06 | deg |
tp | 2458904.064996563633 (2020-Feb-24.56499656) | 2.8684e-05 | TDB |
period | 1568.666258046225 4.29 | 9.4932e-06 2.599e-08 | d yr |
n | .2294943224241848 | 1.3888e-09 | deg/d |
Q | 3.119097814892646 | 1.2584e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
13.33 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
6.609 |
km |
0.105 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
rotation period |
rot_per |
18.8016 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.194 |
|
0.017 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
21655 Niklauswirth | Discovered 1999 Aug. 8 by L. Šarounová at Ondřejov. |
Niklaus Wirth (b. 1934), professor of computer science variously at Stanford University, the University of Zurich and the Swiss Federal Institute of Technology, Zurich, created the computer languages ALGOL, Pascal and Modula. His ideas are widely used in the architecture of contemporary computer systems. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 20010902/MPCPages.arc | Last Updated: 2009-05-11 |
|
|
|