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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380320849686136 4.1413e-08  
a 2.569245412713896 1.5068e-08 au
q 2.214607111600951 1.0588e-07 au
i 1.333659132990644 5.0802e-06 deg
node 228.2403983591757 0.00028198 deg
peri 33.42350332979578 0.00028306 deg
M 274.5707745562155 2.7319e-05 deg
tp 2458957.452788968600
(2020-Apr-17.95278897)
0.00011529 TDB
period 1504.204250491016
4.12
1.3233e-05
3.623e-08
d
yr
n .239329200062083 2.1055e-09 deg/d
Q 2.923883713826842 1.7148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      8211 days (22.48 yr)  
   first obs. used      1996-10-06  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:38:54  

Additional Information
 Earth MOID = 1.19889 au 
 Jupiter MOID = 2.13649 au 
 T_jup = 3.417 
[ 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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