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22576 (1998 HN46)
Classification: Main-belt Asteroid          SPK-ID: 2022576
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09827542655576119 3.098e-08  
a 2.192111187128114 7.1696e-09 au
q 1.976680525155443 6.7603e-08 au
i 2.091586987627609 4.1049e-06 deg
node 103.4450083354091 0.00010909 deg
peri 119.1390594358881 0.0001118 deg
M 339.6042776876302 2.5225e-05 deg
tp 2459267.662814026301
(2021-Feb-22.16281403)
8.314e-05 TDB
period 1185.47471274427
3.25
5.8159e-06
1.592e-08
d
yr
n .3036758153757928 1.4898e-09 deg/d
Q 2.407541849100786 7.8742e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1089  
   data-arc span      22060 days (60.40 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:47  

Additional Information
 Earth MOID = .967611 au 
 Jupiter MOID = 2.56252 au 
 T_jup = 3.665 
[ 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 15.95   n/a E2021B10  
diameter diameter 3.736 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22576 (1998 HN46)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HN46 = 1999 UX20 = 2739 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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