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JPL Small-Body Database Browser
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74770 (1999 RY222)
Classification: Main-belt Asteroid          SPK-ID: 2074770
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05552386875467435 3.6909e-08  
a 2.196610358624169 1.1201e-08 au
q 2.074646053366763 8.2051e-08 au
i 6.428541470372714 4.5368e-06 deg
node 250.8262740029608 5.3329e-05 deg
peri 137.0592631671186 8.1621e-05 deg
M 335.7315653882859 6.1711e-05 deg
tp 2458680.661757622238
(2019-Jul-16.16175762)
0.00020399 TDB
period 1189.126254153867
3.26
9.0954e-06
2.49e-08
d
yr
n .3027432947026817 2.3156e-09 deg/d
Q 2.318574663881575 1.1823e-08 au
  Orbit Determination Parameters
   # obs. used (total)      523  
   data-arc span      21622 days (59.20 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59948  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:27:13  

Additional Information
 Earth MOID = 1.08462 au 
 Jupiter MOID = 2.90221 au 
 T_jup = 3.658 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO432300  

74770 (1999 RY222)          Discovered 1999-Sep-07 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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