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35580 (1998 HK39)
Classification: Main-belt Asteroid          SPK-ID: 2035580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06968867670827811 3.2338e-08  
a 2.735278244960769 1.2732e-08 au
q 2.544660323640512 8.9341e-08 au
i 5.080621045589351 3.9231e-06 deg
node 30.3994341939293 4.3841e-05 deg
peri 237.5292301497624 5.3844e-05 deg
M 263.1118250031451 3.2383e-05 deg
tp 2459445.201883251451
(2021-Aug-18.70188325)
0.00014927 TDB
period 1652.344860203212
4.52
1.1537e-05
3.159e-08
d
yr
n .2178721940380689 1.5213e-09 deg/d
Q 2.925896166281026 1.362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1853  
   data-arc span      8073 days (22.10 yr)  
   first obs. used      1998-03-22  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47497  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:07:01  

Additional Information
 Earth MOID = 1.53338 au 
 Jupiter MOID = 2.12657 au 
 T_jup = 3.343 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO385040  
diameter diameter 8.320 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35580 (1998 HK39)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HK39 = 1999 NS41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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