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293587 (2007 JR9)
Classification: Main-belt Asteroid          SPK-ID: 2293587
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2215618106538084 5.2812e-08  
a 3.17933300011788 5.4864e-08 au
q 2.474914223940357 1.7635e-07 au
i 16.1871396662441 8.79e-06 deg
node 61.0137968859819 3.0928e-05 deg
peri 229.6489482748176 4.0713e-05 deg
M 65.00481648868762 2.6629e-05 deg
tp 2458626.608588314981
(2019-May-23.10858832)
0.00015276 TDB
period 2070.629769872984
5.67
5.3597e-05
1.467e-07
d
yr
n .1738601488483781 4.5003e-09 deg/d
Q 3.883751776295402 6.702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      5782 days (15.83 yr)  
   first obs. used      2003-10-29  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63435  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:04:00  

Additional Information
 Earth MOID = 1.49234 au 
 Jupiter MOID = 1.42715 au 
 T_jup = 3.101 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO494573  
diameter diameter 5.553 km 2.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

293587 (2007 JR9)          Discovered 2007-May-10 by Lowe, A. at Mayhill
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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