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JPL Small-Body Database Browser
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172237 (2002 RG178)
Classification: Main-belt Asteroid          SPK-ID: 2172237
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08365884611799883 5.0795e-08  
a 2.806384832269605 2.3562e-08 au
q 2.571605915438876 1.3596e-07 au
i 1.71087684482941 5.7387e-06 deg
node 190.0144497361538 0.00016993 deg
peri 226.5342341952655 0.00017385 deg
M 234.193575041708 3.7159e-05 deg
tp 2459600.594413748984
(2022-Jan-21.09441375)
0.00017987 TDB
period 1717.193609318879
4.70
2.1626e-05
5.921e-08
d
yr
n .2096443860764152 2.6402e-09 deg/d
Q 3.041163749100333 2.5533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      6980 days (19.11 yr)  
   first obs. used      2000-03-30  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58202  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:15  

Additional Information
 Earth MOID = 1.58369 au 
 Jupiter MOID = 2.22774 au 
 T_jup = 3.317 
[ 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 16.3   n/a MPO436856  

172237 (2002 RG178)          Discovered 2002-Sep-13 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2002 RG178 = 2004 DD53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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