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JPL Small-Body Database Browser
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8556 Jana (1995 NB)
Classification: Main-belt Asteroid          SPK-ID: 2008556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3589907834947142 3.6418e-08  
a 2.911316674676401 9.9626e-09 au
q 1.866180820633094 1.0462e-07 au
i 5.364883108743134 3.1069e-06 deg
node 107.1695657398631 4.2051e-05 deg
peri 256.7911621628032 4.2107e-05 deg
M 339.6093913354279 4.9956e-06 deg
tp 2459103.268563880501
(2020-Sep-10.76856388)
2.5559e-05 TDB
period 1814.398167586858
4.97
9.3134e-06
2.55e-08
d
yr
n .1984128987954162 1.0185e-09 deg/d
Q 3.956452528719709 1.3539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2153  
   data-arc span      10053 days (27.52 yr)  
   first obs. used      1992-01-26  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53569  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:57:25  

Additional Information
 Earth MOID = .872899 au 
 Jupiter MOID = 1.5355 au 
 T_jup = 3.177 
[ 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 13.1   n/a MPO299024  
diameter diameter 7.343 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.227   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

8556 Jana (1995 NB)          Discovered 1995-Jul-07 by Moravec, Z. at Klet
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 NB = 1992 BD6 = 1996 WF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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