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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06823934575935692 | 3.709e-08 | |
| a | 2.234616098056496 | 6.3502e-09 | au |
| q | 2.082127357501794 | 8.336e-08 | au |
| i | 6.519789060720464 | 4.0437e-06 | deg |
| node | 24.99279427789862 | 3.038e-05 | deg |
| peri | 116.2926222391955 | 4.0414e-05 | deg |
| M | 336.2632683488485 | 2.6756e-05 | deg |
| tp | 2459280.949107561556
(2021-Mar-07.44910756) | 9.0722e-05 | TDB |
| period | 1220.120745677943
3.34 | 5.2009e-06
1.424e-08 | d
yr |
| n | .2950527652900214 | 1.2577e-09 | deg/d |
| Q | 2.387104838611198 | 6.7835e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.7 |
|
n/a |
MPO502258 |
|
|
| 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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