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74220 (1998 RX78)
Classification: Main-belt Asteroid          SPK-ID: 2074220
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05014505153405264 4.589e-08  
a 2.706436389961803 1.5796e-08 au
q 2.570721997713533 1.2355e-07 au
i 6.692903094548048 4.5582e-06 deg
node 131.2159594749427 4.2581e-05 deg
peri 280.6423846076805 6.3868e-05 deg
M 272.2628135291518 4.9373e-05 deg
tp 2459396.847721507485
(2021-Jul-01.34772151)		 0.00022438 TDB
period 1626.279408789836
4.45		 1.4238e-05
3.898e-08		 d
yr
n .2213641752175211 1.938e-09 deg/d
Q 2.842150782210073 1.6589e-08 au
   Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59646  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:12:47  

Additional Information
 Earth MOID = 1.59202 au 
 Jupiter MOID = 2.33516 au 
 T_jup = 3.353 
[ 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 15.1   n/a MPO309716  

74220 (1998 RX78)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RX78 = 2000 AU88 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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