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JPL Small-Body Database Browser
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357220 (2002 HP8)
Classification: Main-belt Asteroid          SPK-ID: 2357220
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01741481856407952 6.077e-08  
a 3.199998549586565 4.4111e-08 au
q 3.144271155440197 2.1251e-07 au
i 12.48648223275312 7.5885e-06 deg
node 199.7741440889301 2.7627e-05 deg
peri 51.67873200196856 0.00023393 deg
M 311.656823384736 0.00023106 deg
tp 2458881.273284665166
(2020-Feb-01.77328467)
0.0013433 TDB
period 2090.851068474158
5.72
4.3233e-05
1.184e-07
d
yr
n .1721786909780798 3.5601e-09 deg/d
Q 3.255725943732933 4.4879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6226 days (17.05 yr)  
   first obs. used      2002-04-08  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50371  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:56:49  

Additional Information
 Earth MOID = 2.14687 au 
 Jupiter MOID = 1.72279 au 
 T_jup = 3.157 
[ 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 15.6   n/a MPO437509  

357220 (2002 HP8)          Discovered 2002-Apr-19 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2002 HP8 = 2004 TC304 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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