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JPL Small-Body Database Browser
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59477 (1999 HP3)
Classification: Main-belt Asteroid          SPK-ID: 2059477
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08301973382535588 4.4998e-08  
a 3.047247679464428 1.9123e-08 au
q 2.794265988215358 1.4216e-07 au
i 10.26805760298959 4.337e-06 deg
node 99.19726165468124 2.7503e-05 deg
peri 56.15992240446266 3.8717e-05 deg
M 19.99838092008928 2.698e-05 deg
tp 2458892.567460637547
(2020-Feb-13.06746064)
0.00014549 TDB
period 1942.942997522906
5.32
1.8289e-05
5.007e-08
d
yr
n .1852859298800689 1.7441e-09 deg/d
Q 3.300229370713498 2.071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1256  
   data-arc span      8048 days (22.03 yr)  
   first obs. used      1998-01-22  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52365  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:48:14  

Additional Information
 Earth MOID = 1.82109 au 
 Jupiter MOID = 1.78078 au 
 T_jup = 3.208 
[ 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 13.7   n/a MPO337725  
diameter diameter 9.165 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59477 (1999 HP3)          Discovered 1999-Apr-18 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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