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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .130895013980487 5.586e-08  
a 2.2178984079815 7.2831e-09 au
q 1.927586564861462 1.2434e-07 au
i 5.548979905519159 6.0005e-06 deg
node 3.151450943068671 3.5634e-05 deg
peri 28.13522384608096 3.8591e-05 deg
M 230.4205399556623 1.4694e-05 deg
tp 2459634.754738206309
(2022-Feb-24.25473821)
4.9872e-05 TDB
period 1206.454369394499
3.30
5.9426e-06
1.627e-08
d
yr
n .2983950401544638 1.4698e-09 deg/d
Q 2.508210251101538 8.2364e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:47  

Additional Information
 Earth MOID = .933334 au 
 Jupiter MOID = 2.92659 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 15.77   n/a E2021B55  

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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