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52284 (1990 HP)
Classification: Inner Main-belt Asteroid          SPK-ID: 2052284
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05107360422523509 2.2295e-08  
a 1.940473311481814 6.0857e-09 au
q 1.84136634556156 4.3419e-08 au
i 21.55376639189897 1.442e-06 deg
node 32.09047052123019 1.2174e-06 deg
peri 188.30311900245 8.2975e-06 deg
M 121.1142535994746 1.019e-05 deg
tp 2458868.335898722689
(2020-Jan-19.83589872)
2.6877e-05 TDB
period 987.3245543442024
2.70
4.6447e-06
1.272e-08
d
yr
n .3646217430894526 1.7153e-09 deg/d
Q 2.039580277402067 6.3965e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      14643 days (40.09 yr)  
   first obs. used      1980-11-01  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:44:04  

Additional Information
 Earth MOID = .834869 au 
 Jupiter MOID = 2.92403 au 
 T_jup = 3.816 
[ 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 15.13   n/a MPCxxxxx  

52284 (1990 HP)          Discovered 1990-Apr-26 by Helin, E. F. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 HP = 1980 VY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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