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215475 (2002 RD122)
Classification: Main-belt Asteroid          SPK-ID: 2215475
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1567648265343119 7.2544e-08  
a 2.55032231344316 1.8979e-08 au
q 2.150521478369658 1.8928e-07 au
i 8.383736913119348 6.1987e-06 deg
node 86.63347007249996 4.4312e-05 deg
peri 283.0935350547066 4.9945e-05 deg
M 114.3596455858098 2.4924e-05 deg
tp 2458527.935239478235
(2019-Feb-13.43523948)
0.000101 TDB
period 1487.61665809976
4.07
1.6606e-05
4.546e-08
d
yr
n .241997827894623 2.7014e-09 deg/d
Q 2.950123148516662 2.1954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      6362 days (17.42 yr)  
   first obs. used      2002-09-03  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:23:45  

Additional Information
 Earth MOID = 1.16915 au 
 Jupiter MOID = 2.55771 au 
 T_jup = 3.408 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457307.5 (2015-Oct-12.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566927091468235 7.3137e-08  
q 2.150211697595175 1.9083e-07 au
tp 2457036.126908307504
(2015-Jan-13.62690831)
9.5664e-05 TDB
node 86.78596837585428 4.4382e-05 deg
peri 282.1067443022638 4.99e-05 deg
i 8.37857186502371 6.1991e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      6362 days (17.42 yr)  
   first obs. used      2002-09-03  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:23:45  

Additional Information
 Jupiter MOID = 2.55771 au 
 T_jup = 3.408 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.349055648734876E-15 -1.391048522305348E-14 -4.026164142514072E-12 1.074218745331572E-13 -8.535504972890044E-13 -2.017688409469733E-15
q -1.391048522305348E-14 3.641771558245331E-14 1.060678334171258E-11 -2.780979218502352E-13 2.26526110637271E-12 6.558896113191161E-15
tp -4.026164142514072E-12 1.060678334171258E-11 9.151577975699312E-9 -7.852605018438327E-11 2.229041261421085E-9 1.275588795387922E-11
node 1.074218745331572E-13 -2.780979218502352E-13 -7.852605018438327E-11 1.969734531825076E-9 -1.962921521402745E-9 1.240872338526433E-10
peri -8.535504972890044E-13 2.26526110637271E-12 2.229041261421085E-9 -1.962921521402745E-9 2.489990494335958E-9 -1.195180065375661E-10
i -2.017688409469733E-15 6.558896113191161E-15 1.275588795387922E-11 1.240872338526433E-10 -1.195180065375661E-10 3.842879923799104E-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 16.7   n/a MPO454547  

215475 (2002 RD122)          Discovered 2002-Sep-08 by NEAT at Haleakala
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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