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333948 (1999 XG135)
Classification: Mars-crossing Asteroid          SPK-ID: 2333948
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5041546169876838 6.5927e-08  
a 2.958919367102067 7.0863e-08 au
q 1.467166506883284 1.9648e-07 au
i 11.3869462077614 1.0489e-05 deg
node 86.86625802629055 6.6002e-05 deg
peri 36.46240072764074 8.8656e-05 deg
M 26.58185669415763 6.4465e-05 deg
tp 2459063.228324647737
(2020-Aug-01.72832465)
0.00032803 TDB
period 1859.080187490291
5.09
6.6785e-05
1.828e-07
d
yr
n .1936441485539096 6.9564e-09 deg/d
Q 4.450672227320849 1.0659e-07 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      11336 days (31.04 yr)  
   first obs. used      1990-01-29  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5923  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 07:52:54  

Additional Information
 Earth MOID = .500771 au 
 Jupiter MOID = .832652 au 
 T_jup = 3.035 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.43   n/a MPCxxxxx  

333948 (1999 XG135)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20120831/Numbers.arcLast Updated: 2012-09-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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