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85625 (1998 HW140)
Classification: Main-belt Asteroid          SPK-ID: 2085625
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2532833307295125 5.3375e-08  
a 3.100952163864796 2.1878e-08 au
q 2.315532671368231 1.6886e-07 au
i 8.383550541575763 6.3001e-06 deg
node 72.3232261242307 3.6359e-05 deg
peri 167.8920438728339 3.8043e-05 deg
M 276.465299219319 1.1626e-05 deg
tp 2459063.312891453631
(2020-Aug-01.81289145)
6.5792e-05 TDB
period 1994.532085064215
5.46
2.1108e-05
5.779e-08
d
yr
n .1804934614468283 1.9101e-09 deg/d
Q 3.886371656361361 2.7419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      8507 days (23.29 yr)  
   first obs. used      1995-12-16  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60468  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:33:52  

Additional Information
 Earth MOID = 1.30364 au 
 Jupiter MOID = 1.14008 au 
 T_jup = 3.156 
[ 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 14.4   n/a MPO302496  
diameter diameter 6.561 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85625 (1998 HW140)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 HW140 = 1995 YX25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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