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22845 (1999 RA115)
Classification: Main-belt Asteroid          SPK-ID: 2022845
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07038970654959614 3.9668e-08  
a 2.880182902661435 1.5641e-08 au
q 2.677447673333933 1.1946e-07 au
i 9.798446519015259 4.2236e-06 deg
node 310.775869957588 2.3573e-05 deg
peri 204.4673521328122 3.7218e-05 deg
M 318.5105798898868 2.8748e-05 deg
tp 2459406.261156820947
(2021-Jul-10.76115682)
0.00014259 TDB
period 1785.371216540214
4.89
1.4544e-05
3.982e-08
d
yr
n .201638738579883 1.6426e-09 deg/d
Q 3.082918131988938 1.6742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1578  
   data-arc span      14278 days (39.09 yr)  
   first obs. used      1982-01-30  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:41  

Additional Information
 Earth MOID = 1.69139 au 
 Jupiter MOID = 1.9502 au 
 T_jup = 3.269 
[ 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 13.7   n/a MPO452491  

22845 (1999 RA115)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RA115 = 1982 BQ14 = 1987 DB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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