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101370 (1998 UM4)
Classification: Main-belt Asteroid          SPK-ID: 2101370
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 .24194661313743 4.3297e-08  
a 2.388652187733877 1.0707e-08 au
q 1.810725880948353 1.0522e-07 au
i 4.85289433066283 5.6494e-06 deg
node 173.4561690185454 6.4568e-05 deg
peri 156.2188804111681 6.5679e-05 deg
M 320.0506518502173 1.3817e-05 deg
tp 2459150.135623776974
(2020-Oct-27.63562378)
5.2167e-05 TDB
period 1348.42812347624
3.69
9.0662e-06
2.482e-08
d
yr
n .2669775227410136 1.795e-09 deg/d
Q 2.966578494519401 1.3297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      10518 days (28.80 yr)  
   first obs. used      1991-11-03  
   last obs. used      2020-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:59  

Additional Information
 Earth MOID = .801233 au 
 Jupiter MOID = 2.40897 au 
 T_jup = 3.488 
[ 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 16.1   n/a MPO432541  

101370 (1998 UM4)          Discovered 1998-Oct-20 by ODAS at Caussols
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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