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74783 (1999 RA250)
Classification: Main-belt Asteroid          SPK-ID: 2074783
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315611014437505 4.936e-08  
a 2.397987019175274 1.1753e-08 au
q 2.082505205684759 1.1713e-07 au
i 6.291882176751852 5.8047e-06 deg
node 177.6792878751885 3.5269e-05 deg
peri 245.1884713971148 4.0539e-05 deg
M 155.1885147499242 2.0034e-05 deg
tp 2458415.809894429698
(2018-Oct-24.30989443)
7.4039e-05 TDB
period 1356.340308717412
3.71
9.9715e-06
2.73e-08
d
yr
n .2654201144699627 1.9513e-09 deg/d
Q 2.713468832665789 1.3299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      17063 days (46.72 yr)  
   first obs. used      1973-09-29  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:22  

Additional Information
 Earth MOID = 1.10426 au 
 Jupiter MOID = 2.5992 au 
 T_jup = 3.508 
[ 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 16.4   n/a MPO453161  

74783 (1999 RA250)          Discovered 1999-Sep-07 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RA250 = 2003 SL294 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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