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109788 (2001 RT89)
Classification: Main-belt Asteroid          SPK-ID: 2109788
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142620397877916 3.6865e-08  
a 2.52693057026394 1.2541e-08 au
q 2.238198328903454 9.6086e-08 au
i 6.381581875992704 8.7124e-06 deg
node 147.7006623342331 6.9153e-05 deg
peri 121.571938442454 0.00010735 deg
M 312.6223131127581 8.1403e-05 deg
tp 2459193.589982723709
(2020-Dec-10.08998272)
0.00033189 TDB
period 1467.196867292686
4.02
1.0923e-05
2.991e-08
d
yr
n .2453658455966324 1.8266e-09 deg/d
Q 2.815662811624425 1.3974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      7325 days (20.05 yr)  
   first obs. used      2000-04-07  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:08:40  

Additional Information
 Earth MOID = 1.23003 au 
 Jupiter MOID = 2.28545 au 
 T_jup = 3.435 
[ 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 15.8   n/a MPO385476  

109788 (2001 RT89)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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