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JPL Small-Body Database Browser
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6855 Armellini (1989 BG)
Classification: Main-belt Asteroid          SPK-ID: 2006855
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06411513364931902 2.9656e-08  
a 2.289273015828575 7.6848e-09 au
q 2.142495970458946 6.7663e-08 au
i 7.56978478547637 4.3623e-06 deg
node 330.2272885027522 2.693e-05 deg
peri 279.6526326299497 4.8892e-05 deg
M 151.1593555220865 4.1554e-05 deg
tp 2458069.276423442567
(2017-Nov-11.77642344)
0.00014611 TDB
period 1265.158129975838
3.46
6.3704e-06
1.744e-08
d
yr
n .2845494104415827 1.4328e-09 deg/d
Q 2.436050061198203 8.1775e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1856  
   data-arc span      11746 days (32.16 yr)  
   first obs. used      1987-09-02  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47974  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:57:17  

Additional Information
 Earth MOID = 1.14356 au 
 Jupiter MOID = 2.60954 au 
 T_jup = 3.585 
[ 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 13.8   n/a MPO452264  
diameter diameter 6.712 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.125   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6855 Armellini (1989 BG)          Discovered 1989-Jan-29 by Osservatorio San Vittore at Bologna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 BG = 1987 RA5 = 1987 SL26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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