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JPL Small-Body Database Browser
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59480 (1999 HJ7)
Classification: Main-belt Asteroid          SPK-ID: 2059480
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06727453486874839 3.9486e-08  
a 2.97146587764668 1.8202e-08 au
q 2.771561892849642 1.153e-07 au
i 10.51394687527222 6.3142e-06 deg
node 44.11591431416828 2.9562e-05 deg
peri 60.79764752267585 6.3066e-05 deg
M 73.15957403149368 5.3743e-05 deg
tp 2458220.290279893978
(2018-Apr-11.79027989)
0.00027932 TDB
period 1870.917115772788
5.12
1.7191e-05
4.707e-08
d
yr
n .1924189997328134 1.7681e-09 deg/d
Q 3.171369862443717 1.9427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      10051 days (27.52 yr)  
   first obs. used      1991-11-04  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51748  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:15:00  

Additional Information
 Earth MOID = 1.80628 au 
 Jupiter MOID = 1.99054 au 
 T_jup = 3.234 
[ 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 13.6   n/a MPO395555  
diameter diameter 5.871 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59480 (1999 HJ7)          Discovered 1999-Apr-19 by Spacewatch at Kitt Peak
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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