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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06958302538255552 3.506e-08  
a 2.735994068928384 1.4435e-08 au
q 2.545615324183619 9.451e-08 au
i 5.08058471410556 4.6894e-06 deg
node 30.41408398673764 4.4228e-05 deg
peri 237.2558471068721 5.5877e-05 deg
M 176.2614145851123 3.4222e-05 deg
tp 2457791.169504806812
(2017-Feb-06.66950481)
0.00015731 TDB
period 1652.993532108853
4.53
1.3081e-05
3.581e-08
d
yr
n .2177866960802441 1.7235e-09 deg/d
Q 2.926372813673149 1.5439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1574  
   data-arc span      7652 days (20.95 yr)  
   first obs. used      1998-03-22  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:47:44  

Additional Information
 Earth MOID = 1.53392 au 
 Jupiter MOID = 2.1257 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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