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150254 (1999 LB31)
Classification: Main-belt Asteroid          SPK-ID: 2150254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331318466817052 5.6019e-08  
a 2.684252272125728 2.0776e-08 au
q 2.326892810178067 1.538e-07 au
i 13.95209114145915 5.173e-06 deg
node 97.44311182904096 2.3093e-05 deg
peri 105.1088431457421 2.9809e-05 deg
M 356.8406486388228 2.0083e-05 deg
tp 2459214.597069732064
(2020-Dec-31.09706973)
8.9665e-05 TDB
period 1606.325008957559
4.40
1.865e-05
5.106e-08
d
yr
n .2241140478996997 2.602e-09 deg/d
Q 3.04161173407339 2.3542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7901 days (21.63 yr)  
   first obs. used      1999-05-17  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59059  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:46  

Additional Information
 Earth MOID = 1.36621 au 
 Jupiter MOID = 2.08124 au 
 T_jup = 3.320 
[ 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 15.78   n/a E2021B55  

150254 (1999 LB31)          Discovered 1999-Jun-14 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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