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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .221942388066498 6.1213e-08  
a 2.388179790616574 1.2135e-08 AU
q 1.858141464754983 1.4741e-07 AU
i 2.092838453172536 6.2048e-06 deg
node 309.1422508941586 0.00013909 deg
peri 4.145388939504123 0.00013934 deg
M 134.8374643160447 1.1287e-05 deg
tp 2456495.598069444641
(2013-Jul-22.09806944)
4.1592e-05 JED
period 1348.028130919847
3.69
1.0274e-05
2.813e-08
d
yr
n .2670567414304245 2.0355e-09 deg/d
Q 2.918218116478166 1.4828e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      12575 days (34.43 yr)  
   first obs. used      1980-10-10  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51652  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:34:20  

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
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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