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101128 (1998 RX57)
Classification: Main-belt Asteroid          SPK-ID: 2101128
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746211227008677 4.1171e-08  
a 2.40794286204736 1.2529e-08 au
q 1.987465176077109 9.9679e-08 au
i 4.376791831382897 5.5452e-06 deg
node 155.5533076843926 7.7256e-05 deg
peri 136.8663517990893 7.9516e-05 deg
M 339.8597179977059 2.0288e-05 deg
tp 2459076.853814647214
(2020-Aug-15.35381465)
7.7081e-05 TDB
period 1364.795848929333
3.74
1.0652e-05
2.916e-08
d
yr
n .2637757143549462 2.0587e-09 deg/d
Q 2.82842054801761 1.4716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:15  

Additional Information
 Earth MOID = .974123 au 
 Jupiter MOID = 2.36483 au 
 T_jup = 3.497 
[ 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 MPO469018  

101128 (1998 RX57)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 RX57 = 2001 HG66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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