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129849 (1999 RX55)
Classification: Main-belt Asteroid          SPK-ID: 2129849
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2481643886343332 5.805e-08  
a 2.307517444717671 6.6786e-09 au
q 1.734873788786251 1.3524e-07 au
i 2.821093843889299 3.4665e-06 deg
node 51.55409472143076 0.00011002 deg
peri 297.7320802882273 0.00011021 deg
M 321.3355121127378 7.8435e-06 deg
tp 2459138.007275682166
(2020-Oct-15.50727568)
2.8114e-05 TDB
period 1280.312295611394
3.51
5.5584e-06
1.522e-08
d
yr
n .2811813970966258 1.2207e-09 deg/d
Q 2.88016110064909 8.336e-09 au
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      7633 days (20.90 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:42:04  

Additional Information
 Earth MOID = .731009 au 
 Jupiter MOID = 2.55143 au 
 T_jup = 3.544 
[ 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 16.2   n/a MPO320445  

129849 (1999 RX55)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 RX55 = 2002 JQ87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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