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344212 (2001 RL9)
Classification: Inner Main-belt Asteroid          SPK-ID: 2344212
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09117496509501077 5.7483e-08  
a 1.938147234289206 1.6385e-08 au
q 1.761436727853896 1.1677e-07 au
i 17.6516531695267 9.6507e-06 deg
node 267.2575342763733 1.8276e-05 deg
peri 77.96785354700445 6.0534e-05 deg
M 350.8177513068902 6.496e-05 deg
tp 2459025.637676091474
(2020-Jun-25.13767609)
0.00017802 TDB
period 985.5498032547777
2.70
1.2498e-05
3.422e-08
d
yr
n .3652783439366536 4.6322e-09 deg/d
Q 2.114857740724515 1.7879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      6438 days (17.63 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57488  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:41:54  

Additional Information
 Earth MOID = .821023 au 
 Jupiter MOID = 3.15997 au 
 T_jup = 3.843 
[ 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 17.1   n/a MPO418776  

344212 (2001 RL9)          Discovered 2001-Sep-08 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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