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120822 (1998 HK96)
Classification: Main-belt Asteroid          SPK-ID: 2120822
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2404835214721715 7.8848e-08  
a 2.595944599767126 1.3766e-08 au
q 1.97166270086846 1.9993e-07 au
i 5.549520736068474 5.3062e-06 deg
node 176.5484208104115 7.4886e-05 deg
peri 66.08255680984988 7.6021e-05 deg
M 133.4436700139934 9.5838e-06 deg
tp 2458634.212424029147
(2019-May-30.71242403)
4.2278e-05 TDB
period 1527.712234893788
4.18
1.2152e-05
3.327e-08
d
yr
n .2356464730578194 1.8745e-09 deg/d
Q 3.220226498665791 1.7077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      8265 days (22.63 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:58  

Additional Information
 Earth MOID = .965655 au 
 Jupiter MOID = 1.8189 au 
 T_jup = 3.369 
[ 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 16.3   n/a MPO493690  
diameter diameter 3.994 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120822 (1998 HK96)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 HK96 = 1999 TZ82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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