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JPL Small-Body Database Browser
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35574 (1998 HE12)
Classification: Main-belt Asteroid          SPK-ID: 2035574
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06013803192349738 4.7382e-08  
a 2.58904060583173 1.2675e-08 au
q 2.433340799226991 1.2372e-07 au
i 8.929970512743905 4.8491e-06 deg
node 18.04870979986616 2.7666e-05 deg
peri 160.931434118381 4.6418e-05 deg
M 44.9798122157501 3.8183e-05 deg
tp 2458410.382604156137
(2018-Oct-18.88260416)
0.00016096 TDB
period 1521.621792805636
4.17
1.1174e-05
3.059e-08
d
yr
n .2365896714295972 1.7373e-09 deg/d
Q 2.74474041243647 1.3437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1071  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1998-04-01  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:54:49  

Additional Information
 Earth MOID = 1.43744 au 
 Jupiter MOID = 2.21423 au 
 T_jup = 3.401 
[ 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 14.3   n/a MPO395341  
diameter diameter 4.985 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.163   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35574 (1998 HE12)          Discovered 1998-Apr-19 by Spacewatch at Kitt Peak
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HE12 = 2000 VS46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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