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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333788561193562 4.1443e-08  
a 2.644932118356307 1.2354e-08 au
q 2.292154097896597 1.1083e-07 au
i 14.25614628170934 4.1492e-06 deg
node 89.57016265611389 2.3298e-05 deg
peri 18.67534534465087 3.1985e-05 deg
M 301.862560184132 2.107e-05 deg
tp 2458854.231054678199
(2020-Jan-05.73105468)
9.205e-05 TDB
period 1571.15930755555
4.30
1.1008e-05
3.014e-08
d
yr
n .229130170485447 1.6053e-09 deg/d
Q 2.997710138816017 1.4001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1619  
   data-arc span      23754 days (65.03 yr)  
   first obs. used      1954-11-24  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49053  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:12:16  

Additional Information
 Earth MOID = 1.31315 au 
 Jupiter MOID = 2.1829 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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