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JPL Small-Body Database Browser
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6391 Africano (1990 BN2)
Classification: Main-belt Asteroid          SPK-ID: 2006391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333120681885792 4.0678e-08  
a 2.644897825801339 1.1484e-08 au
q 2.292301026496286 1.095e-07 au
i 14.25596801763739 4.1391e-06 deg
node 89.56961884529468 1.9793e-05 deg
peri 18.5735451049279 2.8531e-05 deg
M 33.59229120968966 1.8387e-05 deg
tp 2458853.894959575544
(2020-Jan-05.39495958)
8.0386e-05 TDB
period 1571.128751633961
4.30
1.0233e-05
2.802e-08
d
yr
n .2291346266979093 1.4923e-09 deg/d
Q 2.997494625106392 1.3015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1785  
   data-arc span      23813 days (65.20 yr)  
   first obs. used      1954-11-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:01:53  

Additional Information
 Earth MOID = 1.31309 au 
 Jupiter MOID = 2.18227 au 
 T_jup = 3.337 
[ 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 13.5   n/a MPO452257  
diameter diameter 5.880 km 0.961 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.268   0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6391 Africano (1990 BN2)          Discovered 1990-Jan-21 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 BN2 = 1977 AF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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