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129749 (1999 CJ137)
Classification: Outer Main-belt Asteroid          SPK-ID: 2129749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05330822916318354 5.7027e-08  
a 3.461027408023868 3.5832e-08 au
q 3.276526165816872 2.0185e-07 au
i 5.84985831324907 5.6964e-06 deg
node 152.4893176611779 5.8166e-05 deg
peri 315.6198378143385 8.3738e-05 deg
M 144.0121264386006 6.0507e-05 deg
tp 2458059.688652522594
(2017-Nov-02.18865252)
0.00039033 TDB
period 2351.830317818875
6.44
3.6523e-05
9.999e-08
d
yr
n .1530722677024887 2.3771e-09 deg/d
Q 3.645528650230863 3.7742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      7835 days (21.45 yr)  
   first obs. used      1999-02-09  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58198  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:46:40  

Additional Information
 Earth MOID = 2.29658 au 
 Jupiter MOID = 1.42218 au 
 T_jup = 3.124 
[ 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 15.1   n/a MPO436628  

129749 (1999 CJ137)          Discovered 1999-Feb-09 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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