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JPL Small-Body Database Browser
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100185 (1994 AC13)
Classification: Main-belt Asteroid          SPK-ID: 2100185
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656447112243222 5.8114e-08  
a 2.358203153711547 1.2335e-08 au
q 1.967579273306711 1.3559e-07 au
i 2.545484408790385 5.1885e-06 deg
node 45.53817568536602 0.00013214 deg
peri 139.4093148057898 0.000133 deg
M 56.83353739000269 1.3886e-05 deg
tp 2458791.679833473407
(2019-Nov-04.17983347)
5.0718e-05 TDB
period 1322.727097447872
3.62
1.0379e-05
2.842e-08
d
yr
n .27216498451918 2.1355e-09 deg/d
Q 2.748827034116382 1.4379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      9129 days (24.99 yr)  
   first obs. used      1994-01-08  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62617  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:36:14  

Additional Information
 Earth MOID = .970105 au 
 Jupiter MOID = 2.20743 au 
 T_jup = 3.533 
[ 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 17.3   n/a MPO417504  

100185 (1994 AC13)          Discovered 1994-Jan-11 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1994 AC13 = 1998 HA81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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