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JPL Small-Body Database Browser
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56081 (1999 AU8)
Classification: Main-belt Asteroid          SPK-ID: 2056081
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05817031023443789 3.6197e-08  
a 2.376082814746966 1.0354e-08 au
q 2.237865340270418 8.2161e-08 au
i 6.521390393328461 3.4225e-06 deg
node 266.4505631930675 3.449e-05 deg
peri 21.26398682457897 5.0845e-05 deg
M 21.55298915377188 3.5609e-05 deg
tp 2458520.406772196317
(2019-Feb-05.90677220)
0.0001324 TDB
period 1337.798752813824
3.66
8.7441e-06
2.394e-08
d
yr
n .2690987708299199 1.7589e-09 deg/d
Q 2.514300289223513 1.0956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      7708 days (21.10 yr)  
   first obs. used      1998-10-29  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54172  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:40:41  

Additional Information
 Earth MOID = 1.22215 au 
 Jupiter MOID = 2.5723 au 
 T_jup = 3.530 
[ 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 15.3   n/a MPO493266  
diameter diameter 3.915 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.139   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56081 (1999 AU8)          Discovered 1999-Jan-10 by McClusky, J. V. at Fair Oaks Ranch
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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