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295414 (2008 JU31)
Classification: Main-belt Asteroid          SPK-ID: 2295414
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08655625106415139 1.3463e-07  
a 3.15443591024669 4.5913e-08 au
q 2.881399763633602 4.367e-07 au
i 21.96229088308179 8.1036e-06 deg
node 99.69105241758136 2.1668e-05 deg
peri 122.9937760650265 5.5156e-05 deg
M 349.3076726331394 4.5161e-05 deg
tp 2458661.278606049479
(2019-Jun-26.77860605)
0.00025647 TDB
period 2046.355056956753
5.60
4.4678e-05
1.223e-07
d
yr
n .1759225500854069 3.8409e-09 deg/d
Q 3.427472056859777 4.9888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:43:06  

Additional Information
 Earth MOID = 1.91949 au 
 Jupiter MOID = 1.80691 au 
 T_jup = 3.088 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457826.5 (2017-Mar-14.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08606870347225115 1.3449e-07  
q 2.883572419314593 4.3637e-07 au
tp 2458660.032714219608
(2019-Jun-25.53271422)
0.00025883 TDB
node 99.69298414323443 2.1674e-05 deg
peri 122.6860135441433 5.5591e-05 deg
i 21.95767288927042 8.102e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:43:06  

Additional Information
 Jupiter MOID = 1.80691 au 
 T_jup = 3.088 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.80867316926318E-14 -5.842778340785397E-14 1.155469469875261E-11 -5.848932353639509E-15 3.284780807018433E-12 -7.549317177900869E-14
q -5.842778340785397E-14 1.904206656684137E-13 -3.833474149686571E-11 1.545678715295179E-14 -1.092798816325099E-11 2.53981780639642E-13
tp 1.155469469875261E-11 -3.833474149686571E-11 6.699267962515196E-8 1.223755782334457E-11 1.314710363022544E-8 -2.244999887072976E-11
node -5.848932353639509E-15 1.545678715295179E-14 1.223755782334457E-11 4.697811137022969E-10 -4.333141145974834E-10 -3.863813653485022E-11
peri 3.284780807018433E-12 -1.092798816325099E-11 1.314710363022544E-8 -4.333141145974834E-10 3.090315155071455E-9 2.636130510820472E-11
i -7.549317177900869E-14 2.53981780639642E-13 -2.244999887072976E-11 -3.863813653485022E-11 2.636130510820472E-11 6.564271650505227E-11

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 14.9   n/a MPO260565  
diameter diameter 7.671 km 0.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.030   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295414 (2008 JU31)          Discovered 2008-May-05 by CSS at Catalina
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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