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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312854536278866 4.9443e-08  
a 2.398571242146186 1.1674e-08 au
q 2.083673728562221 1.1748e-07 au
i 6.291518230174622 5.8041e-06 deg
node 177.6678012166199 3.5268e-05 deg
peri 245.1499533782065 4.0555e-05 deg
M 208.3253765659544 2.0214e-05 deg
tp 2459772.159973766176
(2022-Jul-11.65997377)
7.7915e-05 TDB
period 1356.836007872555
3.71
9.9055e-06
2.712e-08
d
yr
n .2653231473156881 1.937e-09 deg/d
Q 2.713468755730152 1.3206e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62569  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:15:38  

Additional Information
 Earth MOID = 1.10472 au 
 Jupiter MOID = 2.59928 au 
 T_jup = 3.507 
[ 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 16.43   n/a E2021B10  

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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