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212229 (2005 JV21)
Classification: Main-belt Asteroid          SPK-ID: 2212229
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06082034590660756 5.8972e-08  
a 2.596459037950011 1.7055e-08 au
q 2.438541501129553 1.6123e-07 au
i 13.36088899349134 4.8044e-06 deg
node 186.8662409281541 1.705e-05 deg
peri 347.5933370901417 3.7189e-05 deg
M 310.8808638488343 3.2642e-05 deg
tp 2459409.006145418822
(2021-Jul-13.50614542)
0.00013857 TDB
period 1528.166377351787
4.18
1.5057e-05
4.122e-08
d
yr
n .2355764433345645 2.3211e-09 deg/d
Q 2.754376574770467 1.8092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      8158 days (22.34 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:41:04  

Additional Information
 Earth MOID = 1.44263 au 
 Jupiter MOID = 2.20604 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457479.5 (2016-Apr-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06048957464019999 5.9383e-08  
q 2.438541442510166 1.6221e-07 au
tp 2457886.590372031439
(2017-May-13.09037203)
0.00013904 TDB
node 186.9006600397404 1.7036e-05 deg
peri 348.8743036816368 3.7015e-05 deg
i 13.36732306782076 4.8071e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      8158 days (22.34 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:41:04  

Additional Information
 Jupiter MOID = 2.20604 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.526393501781987E-15 -9.59595669109381E-15 4.02799486731848E-13 -3.617457508440771E-14 2.953782201556237E-13 -2.868218855705642E-15
q -9.59595669109381E-15 2.631259923173747E-14 -1.234385919095992E-12 9.748594366220265E-14 -8.473117265583187E-13 8.217628332794756E-15
tp 4.02799486731848E-13 -1.234385919095992E-12 1.933338607444636E-8 -2.025153963230317E-11 4.559405667045512E-9 4.784731775723321E-12
node -3.617457508440771E-14 9.748594366220265E-14 -2.025153963230317E-11 2.902103813135841E-10 -2.881640422974795E-10 5.428467153299068E-12
peri 2.953782201556237E-13 -8.473117265583187E-13 4.559405667045512E-9 -2.881640422974795E-10 1.370084218574182E-9 -4.176231257351195E-12
i -2.868218855705642E-15 8.217628332794756E-15 4.784731775723321E-12 5.428467153299068E-12 -4.176231257351195E-12 2.310801614193819E-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 15.8   n/a MPO413064  

212229 (2005 JV21)          Discovered 2005-May-06 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2005 JV21 = 2002 RE177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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