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30238 (2000 HY4)
Classification: Main-belt Asteroid          SPK-ID: 2030238
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02183374536739462 5.4357e-08  
a 2.964284018002697 1.658e-08 au
q 2.899562595556989 1.6095e-07 au
i 9.688443376997141 7.8251e-06 deg
node 189.1847988109971 1.9254e-05 deg
peri 317.3236070248053 0.00014952 deg
M 87.37187176410281 0.00014678 deg
tp 2458748.074281722568
(2019-Sep-21.57428172)
0.00076032 TDB
period 1864.138369607333
5.10
1.564e-05
4.282e-08
d
yr
n .1931187115019962 1.6203e-09 deg/d
Q 3.029005440448406 1.6942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1251  
   data-arc span      8272 days (22.65 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5029  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:32:57  

Additional Information
 Earth MOID = 1.91299 au 
 Jupiter MOID = 1.94487 au 
 T_jup = 3.243 
[ 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 14.12   n/a MPCxxxxx  
diameter diameter 5.459 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30238 (2000 HY4)          Discovered 2000-Apr-27 by LINEAR at Socorro
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 HY4 = 1999 CR103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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