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312018 (2007 RJ45)
Classification: Main-belt Asteroid          SPK-ID: 2312018
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335304785483518 1.068e-07  
a 2.310880951778656 2.5865e-08 au
q 2.002307912419381 2.573e-07 au
i 7.008062417979081 1.0103e-05 deg
node 326.7525340149572 4.7866e-05 deg
peri 45.57057636252416 5.6961e-05 deg
M 209.973961055163 3.3975e-05 deg
tp 2459535.223078145100
(2021-Nov-16.72307815)
0.00012786 TDB
period 1283.112648218462
3.51
2.1542e-05
5.898e-08
d
yr
n .2805677276269096 4.7105e-09 deg/d
Q 2.619453991137931 2.9319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      7152 days (19.58 yr)  
   first obs. used      2000-09-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63487  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:25:22  

Additional Information
 Earth MOID = 1.00842 au 
 Jupiter MOID = 2.86184 au 
 T_jup = 3.563 
[ 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 17.5   n/a MPO471267  

312018 (2007 RJ45)          Discovered 2007-Sep-09 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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