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101012 (1998 QJ50)
Classification: Main-belt Asteroid          SPK-ID: 2101012
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309157489811528 5.5811e-08  
a 2.217774588547123 7.3247e-09 au
q 1.927432967216108 1.2415e-07 au
i 5.549075445135973 6.0006e-06 deg
node 3.15360116632859 3.5634e-05 deg
peri 28.18780413066836 3.8596e-05 deg
M 170.6709105849677 1.4629e-05 deg
tp 2458428.584935546953
(2018-Nov-06.08493555)
4.8408e-05 TDB
period 1206.353341043411
3.30
5.9763e-06
1.636e-08
d
yr
n .298420029813674 1.4784e-09 deg/d
Q 2.508116209878137 8.2836e-09 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      7969 days (21.82 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54255  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:57  

Additional Information
 Earth MOID = .934415 au 
 Jupiter MOID = 2.92578 au 
 T_jup = 3.635 
[ 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 15.8   n/a MPO469017  

101012 (1998 QJ50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QJ50 = 2000 DE72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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