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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 15 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .21444782040302 | 7.0723e-08 | |
| a | 2.604334813882347 | 1.2805e-08 | au |
| q | 2.045840889445573 | 1.8256e-07 | au |
| i | 12.65346470687136 | 7.1764e-06 | deg |
| node | 246.0989521610531 | 2.0014e-05 | deg |
| peri | 333.1299101733867 | 2.3006e-05 | deg |
| M | 97.07404088969716 | 9.2399e-06 | deg |
| tp | 2458586.553457817573
(2019-Apr-13.05345782) | 3.9787e-05 | TDB |
| period | 1535.124672053184
4.20 | 1.1321e-05
3.1e-08 | d
yr |
| n | .2345086406034441 | 1.7295e-09 | deg/d |
| Q | 3.162828738319122 | 1.555e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457086.5 (2015-Mar-05.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2135051532009302 | 7.0919e-08 | |
| q | 2.048762905964149 | 1.8289e-07 | au |
| tp | 2457050.120364887066
(2015-Jan-27.62036489) | 4.3301e-05 | TDB |
| node | 246.134845567952 | 2.0007e-05 | deg |
| peri | 333.0904508919335 | 2.3013e-05 | deg |
| i | 12.65342546911319 | 7.1773e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
5.029551059800665E-15 |
-1.295137039074089E-14 |
1.000007705514945E-13 |
4.010579350772419E-14 |
-1.017252109110242E-13 |
-6.608553693971412E-15 |
| q |
-1.295137039074089E-14 |
3.344738305986615E-14 |
-4.392002648712615E-13 |
-1.056569918202577E-13 |
2.218277279804681E-13 |
1.780696966470435E-14 |
| tp |
1.000007705514945E-13 |
-4.392002648712615E-13 |
1.874944419356751E-9 |
3.807302597876085E-12 |
4.991347276610057E-10 |
-3.055969269237224E-12 |
| node |
4.010579350772419E-14 |
-1.056569918202577E-13 |
3.807302597876085E-12 |
4.002755707871092E-10 |
-3.895282590269127E-10 |
-4.182877861445908E-11 |
| peri |
-1.017252109110242E-13 |
2.218277279804681E-13 |
4.991347276610057E-10 |
-3.895282590269127E-10 |
5.296057765795732E-10 |
4.005856195082108E-11 |
| i |
-6.608553693971412E-15 |
1.780696966470435E-14 |
-3.055969269237224E-12 |
-4.182877861445908E-11 |
4.005856195082108E-11 |
5.151292986637922E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.3 |
|
n/a |
MPO328910 |
|
| diameter |
diameter |
7.520 |
km |
0.029 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.058 |
|
0.011 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 19509 Niigata | Discovered 1998 June 29 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. |
| Niigata prefecture is located on the island of Honshu, Japan. The Asteroids, Comets, Meteors 2012 meeting is to be held at Toki Messe in Niigata city, capital of the prefecture. Niigata is known for high quality rice and sake. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20120506/MPCPages.arc | Last Updated: 2012-05-09 |
|
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