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11695 Mattei (1998 FA74)
Classification: Main-belt Asteroid          SPK-ID: 2011695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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
   # obs. used (total)      1692  
   data-arc span      16160 days (44.24 yr)  
   first obs. used      1976-10-24  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49296  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:01:59  

Additional Information
 Earth MOID = 1.1029 au 
 Jupiter MOID = 2.60859 au 
 T_jup = 3.628 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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.arcLast Updated: 2009-05-11

Alternate Designations
 1998 FA74 = 1976 UL19 = 1996 TH65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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