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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06809050860497329 | 4.0888e-08 | |
| a | 2.234298643022403 | 7.7295e-09 | au |
| q | 2.082164112043606 | 9.0225e-08 | au |
| i | 6.520385437892449 | 5.0825e-06 | deg |
| node | 25.00180914326502 | 3.1304e-05 | deg |
| peri | 116.5935768327868 | 4.8124e-05 | deg |
| M | 158.8684760686889 | 3.8244e-05 | deg |
| tp | 2458062.173835702202
(2017-Nov-04.67383570) | 0.0001284 | TDB |
| period | 1219.860754901535
3.34 | 6.3301e-06
1.733e-08 | d
yr |
| n | .2951156503342537 | 1.5314e-09 | deg/d |
| Q | 2.3864331740012 | 8.2558e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.6 |
|
n/a |
MPO236459 |
|
|
| 11695 Mattei | Discovered 1998 Mar. 22 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. |
| Janet Akyüz Mattei (b. 1943), a tireless promoter of the observation of variable stars by amateurs, has been the director of the American Association of Variable Star Observers since 1973. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20010109/MPCPages.arc | Last Updated: 2009-05-11 |
|
Alternate Designations
| 1998 FA74 = 1976 UL19 = 1996 TH65 |
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