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129845 (1999 RG27)
Classification: Mars-crossing Asteroid          SPK-ID: 2129845
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744102697124606 8.2418e-08  
a 1.911577104740128 6.967e-09 au
q 1.578178426326238 1.5971e-07 au
i 22.64690111240749 1.0316e-05 deg
node 4.503741205638182 1.5083e-05 deg
peri 23.18832137846896 2.5591e-05 deg
M 285.1158758645962 2.3499e-05 deg
tp 2459201.304486117783
(2020-Dec-17.80448612)
6.3647e-05 TDB
period 965.3530149019235
2.64
5.2776e-06
1.445e-08
d
yr
n .3729205735547164 2.0387e-09 deg/d
Q 2.244975783154019 8.1821e-09 au
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      16427 days (44.97 yr)  
   first obs. used      1975-08-08  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54287  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:42:03  

Additional Information
 Earth MOID = .590787 au 
 Jupiter MOID = 3.24538 au 
 T_jup = 3.824 
[ 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 16.7   n/a MPO345135  

129845 (1999 RG27)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 RG27 = 1991 TD13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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