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100935 (1998 MA42)
Classification: Mars-crossing Asteroid          SPK-ID: 2100935
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3157804424347067 4.4789e-08  
a 2.285851199312519 7.3694e-09 au
q 1.564024096253707 9.9905e-08 au
i 4.407939621265171 2.9835e-06 deg
node 282.1790734670469 5.9631e-05 deg
peri 60.68929128344977 5.9897e-05 deg
M 83.00276072524271 5.0288e-06 deg
tp 2458709.454829206843
(2019-Aug-13.95482921)
1.7213e-05 TDB
period 1262.322609152347
3.46
6.1044e-06
1.671e-08
d
yr
n .2851885860158528 1.3791e-09 deg/d
Q 3.00767830237133 9.6965e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1095  
   data-arc span      16604 days (45.46 yr)  
   first obs. used      1974-08-21  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46777  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:13:46  

Additional Information
 Earth MOID = .562112 au 
 Jupiter MOID = 2.42869 au 
 T_jup = 3.530 
[ 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 15.4   n/a MPO502724  

100935 (1998 MA42)          Discovered 1998-Jun-26 by Broughton, J. at Reedy Creek
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 MA42 = 1974 QA1 = 2002 TO293 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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