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9188 (1991 RM15)
Classification: Main-belt Asteroid          SPK-ID: 2009188
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .22194238570667 6.2798e-08  
a 2.388179791111793 1.2534e-08 AU
q 1.858141470775985 1.5173e-07 AU
i 2.092839385990306 6.3592e-06 deg
node 309.1422877685306 0.00014966 deg
peri 4.145351245804811 0.00014994 deg
M 134.8374648085606 1.1737e-05 deg
tp 2456495.598067443357
(2013-Jul-22.09806744)
4.359e-05 JED
period 1348.028131339142
3.69
1.0612e-05
2.905e-08
d
yr
n .2670567413473583 2.1024e-09 deg/d
Q 2.918218111447601 1.5316e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      12497 days (34.21 yr)  
   first obs. used      1980-10-10  
   last obs. used      2014-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53291  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:28:58  

Additional Information
 Earth MOID = .845057 AU 
 T_jup = 3.499 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO267744  

9188 (1991 RM15)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 19980910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RM15 = 1980 TP7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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