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JPL Small-Body Database Browser
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56252 (1999 JF78)
Classification: Main-belt Asteroid          SPK-ID: 2056252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176242261925921 5.6604e-08  
a 2.64718013952225 1.2642e-08 au
q 2.335807624018548 1.5208e-07 au
i 11.41862678248027 5.7354e-06 deg
node 33.72727086184554 1.9366e-05 deg
peri 127.1246153705368 2.8797e-05 deg
M 272.2203241402344 1.9062e-05 deg
tp 2458984.088115073190
(2020-May-14.58811507)
8.3003e-05 TDB
period 1573.162808745841
4.31
1.1269e-05
3.085e-08
d
yr
n .2288383618012173 1.6393e-09 deg/d
Q 2.958552655025953 1.4129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      9934 days (27.20 yr)  
   first obs. used      1992-09-22  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56799  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:42:26  

Additional Information
 Earth MOID = 1.36169 au 
 Jupiter MOID = 2.05128 au 
 T_jup = 3.354 
[ 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 14.5   n/a MPO452934  

56252 (1999 JF78)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JF78 = 2001 UL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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