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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862453154424941 3.3693e-08  
a 2.422470405197776 1.0281e-08 au
q 1.97129664043161 8.3132e-08 au
i 1.206946240725323 4.222e-06 deg
node 254.4992668588045 0.00019865 deg
peri 21.99121652794541 0.00019904 deg
M 86.43741958842794 1.3906e-05 deg
tp 2458669.837123340255
(2019-Jul-05.33712334)
5.2545e-05 TDB
period 1377.165539696941
3.77
8.7671e-06
2.4e-08
d
yr
n .2614064828250215 1.6641e-09 deg/d
Q 2.873644169963943 1.2196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      9895 days (27.09 yr)  
   first obs. used      1992-03-01  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55563  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:31:35  

Additional Information
 Earth MOID = .954952 au 
 Jupiter MOID = 2.24854 au 
 T_jup = 3.488 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455976.5 (2012-Feb-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862226766472695 3.3883e-08  
q 1.971149952783676 8.3734e-08 au
tp 2455911.326753306153
(2011-Dec-15.82675331)
5.0251e-05 TDB
node 254.6360480872089 0.00019835 deg
peri 21.21934089663386 0.00019874 deg
i 1.207507259177469 4.2295e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      9895 days (27.09 yr)  
   first obs. used      1992-03-01  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55563  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:31:35  

Additional Information
 Jupiter MOID = 2.24854 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.148031521038278E-15 -2.823166421342517E-15 -4.677340889026478E-13 -8.130460498781789E-15 -9.983886878626739E-14 7.562587516060092E-17
q -2.823166421342517E-15 7.011326011127525E-15 1.129258850697892E-12 1.971204975007608E-14 2.410420086081038E-13 -1.47124379857467E-16
tp -4.677340889026478E-13 1.129258850697892E-12 2.525140012017202E-9 6.6929225320374E-13 6.427275058552663E-10 9.555394547660181E-14
node -8.130460498781789E-15 1.971204975007608E-14 6.6929225320374E-13 3.934433819481976E-8 -3.933538414396982E-8 -2.100720418092359E-10
peri -9.983886878626739E-14 2.410420086081038E-13 6.427275058552663E-10 -3.933538414396982E-8 3.949910903730516E-8 2.100523647786927E-10
i 7.562587516060092E-17 -1.47124379857467E-16 9.555394547660181E-14 -2.100720418092359E-10 2.100523647786927E-10 1.788844647827613E-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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