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15328 (1993 RJ9)
Classification: Main-belt Asteroid          SPK-ID: 2015328
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862452628358208 3.2839e-08  
a 2.422470409509712 9.0543e-09 au
q 1.971296771378578 8.0116e-08 au
i 1.206943937910772 4.1686e-06 deg
node 254.499396111726 0.000182 deg
peri 21.99109277915185 0.00018236 deg
M 86.43741500973834 1.2574e-05 deg
tp 2458669.837139972990
(2019-Jul-05.33713997)
4.7598e-05 TDB
period 1377.165543373921
3.77
7.721e-06
2.114e-08
d
yr
n .2614064821270761 1.4656e-09 deg/d
Q 2.873644047640847 1.0741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1286  
   data-arc span      10482 days (28.70 yr)  
   first obs. used      1992-03-01  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:59:35  

Additional Information
 Earth MOID = .954952 au 
 Jupiter MOID = 2.24854 au 
 T_jup = 3.488 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456322.5 (2013-Jan-30.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860506723428222 3.3035e-08  
q 1.972155959929616 8.0616e-08 au
tp 2455911.548337810727
(2011-Dec-16.04833781)
4.6188e-05 TDB
node 254.6271017759077 0.00018167 deg
peri 21.34017913155056 0.00018203 deg
i 1.207651385696868 4.1759e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1286  
   data-arc span      10482 days (28.70 yr)  
   first obs. used      1992-03-01  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:59:35  

Additional Information
 Jupiter MOID = 2.24854 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.091308343493279E-15 -2.651971795282314E-15 -4.622354584258754E-13 -2.410481767365048E-15 -1.101653822515781E-13 6.677660994180244E-17
q -2.651971795282314E-15 6.498972468534922E-15 1.104496150509785E-12 5.293754948065521E-15 2.673981289831038E-13 -1.455865083423685E-16
tp -4.622354584258754E-13 1.104496150509785E-12 2.133337218741312E-9 -3.511026668735463E-12 5.442770279942314E-10 9.128899220614364E-14
node -2.410481767365048E-15 5.293754948065521E-15 -3.511026668735463E-12 3.30040973970048E-8 -3.299762026655482E-8 -1.940079360296444E-10
peri -1.101653822515781E-13 2.673981289831038E-13 5.442770279942314E-10 -3.299762026655482E-8 3.313624289321362E-8 1.939920446286427E-10
i 6.677660994180244E-17 -1.455865083423685E-16 9.128899220614364E-14 -1.940079360296444E-10 1.939920446286427E-10 1.743840473849118E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO435843  

15328 (1993 RJ9)          Discovered 1993-Sep-14 by Debehogne, H., Elst, E. W. at La Silla
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 RJ9 = 1992 EL15 = 1998 XE21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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