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JPL Small-Body Database Browser
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59471 (1999 HP)
Classification: Main-belt Asteroid          SPK-ID: 2059471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385216824941347 4.1196e-08  
a 2.570508639398892 1.4786e-08 au
q 2.214437457803649 1.0564e-07 au
i 1.33329760128263 5.0596e-06 deg
node 228.231683153735 0.00028202 deg
peri 33.37816696078107 0.00028309 deg
M 10.34257187007345 2.7565e-05 deg
tp 2458957.253289868748
(2020-Apr-17.75328987)
0.00011512 TDB
period 1505.313750083721
4.12
1.2989e-05
3.556e-08
d
yr
n .2391528011884418 2.0635e-09 deg/d
Q 2.926579820994136 1.6835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      8239 days (22.56 yr)  
   first obs. used      1996-10-06  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:48:05  

Additional Information
 Earth MOID = 1.19908 au 
 Jupiter MOID = 2.13402 au 
 T_jup = 3.416 
[ 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 15.8   n/a MPO432148  

59471 (1999 HP)          Discovered 1999-Apr-17 by Zoltowski, F. B. at Woomera
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 HP = 1996 TO44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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