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190328 (1998 RA12)
Classification: Main-belt Asteroid          SPK-ID: 2190328
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1308054365664547 4.0454e-08  
a 2.234561428441216 9.9979e-09 au
q 1.942268645259402 8.9903e-08 au
i 6.836926739345815 4.4276e-06 deg
node 177.3462735201685 3.2424e-05 deg
peri 203.9658403591376 3.5399e-05 deg
M 225.157137897707 1.4602e-05 deg
tp 2459657.495933009832
(2022-Mar-18.99593301)		 5.0329e-05 TDB
period 1220.075970789869
3.34		 8.1883e-06
2.242e-08		 d
yr
n .2950635932670148 1.9803e-09 deg/d
Q 2.52685421162303 1.1306e-08 au
   Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      7916 days (21.67 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53527  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:11  

Additional Information
 Earth MOID = .945002 au 
 Jupiter MOID = 2.93286 au 
 T_jup = 3.619 
[ 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 17.12   n/a E2021B55  

190328 (1998 RA12)          Discovered 1998-Sep-13 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

Alternate Designations
 1998 RA12 = 2003 BQ5 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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