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85324 (1995 HX2)
Classification: Main-belt Asteroid          SPK-ID: 2085324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099731554231393 8.4811e-08  
a 3.065698194090371 3.0644e-08 au
q 2.728553690111233 2.714e-07 au
i 13.26961095419558 6.4925e-06 deg
node 49.20509721796233 2.2215e-05 deg
peri 170.6474077236734 3.4755e-05 deg
M 242.3415633335926 3.1594e-05 deg
tp 2459641.286121167188
(2022-Mar-02.78612117)
0.00017895 TDB
period 1960.615916342953
5.37
2.9397e-05
8.048e-08
d
yr
n .1836157694116304 2.7531e-09 deg/d
Q 3.402842698069509 3.4014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      479  
   data-arc span      9073 days (24.84 yr)  
   first obs. used      1995-03-26  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6189  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:30:22  

Additional Information
 Earth MOID = 1.72094 au 
 Jupiter MOID = 1.57707 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457298.5 (2015-Oct-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119272301788564 8.4308e-08  
q 2.722464921551246 2.7091e-07 au
tp 2457681.336945652044
(2016-Oct-19.83694565)
0.00015702 TDB
node 49.2778285822296 2.2245e-05 deg
peri 170.6355052175434 3.4535e-05 deg
i 13.26271342226505 6.4886e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      479  
   data-arc span      9073 days (24.84 yr)  
   first obs. used      1995-03-26  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6189  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:30:22  

Additional Information
 Jupiter MOID = 1.57707 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.107799191577261E-15 -2.274080167857704E-14 -6.822614642070988E-12 -2.660920353943494E-14 -9.04627064420428E-13 -1.83797421730249E-14
q -2.274080167857704E-14 7.339436359120856E-14 2.374061216430166E-11 8.888874618235931E-14 3.211068636872302E-12 5.945116036543809E-14
tp -6.822614642070988E-12 2.374061216430166E-11 2.465679638227582E-8 2.614046780519535E-11 4.145241909369214E-9 3.606095413930601E-11
node -2.660920353943494E-14 8.888874618235931E-14 2.614046780519535E-11 4.948454830576795E-10 -4.777939238051496E-10 -4.588036800011465E-11
peri -9.04627064420428E-13 3.211068636872302E-12 4.145241909369214E-9 -4.777939238051496E-10 1.192693654306425E-9 5.037037083969555E-11
i -1.83797421730249E-14 5.945116036543809E-14 3.606095413930601E-11 -4.588036800011465E-11 5.037037083969555E-11 4.210144403616677E-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 14.8   n/a MPO453283  
diameter diameter 4.188 km 0.502 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85324 (1995 HX2)          Discovered 1995-Apr-25 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1995 HX2 = 2000 FX31 = 2003 UN313 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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