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146867 (2002 AC176)
Classification: Main-belt Asteroid          SPK-ID: 2146867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06713098975927519 5.6718e-08  
a 3.048214140201768 2.6743e-08 au
q 2.843584507971805 1.7306e-07 au
i 2.535763407192726 5.8819e-06 deg
node 316.4995365340341 0.00011993 deg
peri 234.6010994742275 0.00012615 deg
M 106.4627615577108 3.8695e-05 deg
tp 2458425.640300673405
(2018-Nov-03.14030067)
0.00020933 TDB
period 1943.867402362956
5.32
2.5581e-05
7.004e-08
d
yr
n .1851978172803277 2.4372e-09 deg/d
Q 3.252843772431731 2.8538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      9005 days (24.65 yr)  
   first obs. used      1994-09-12  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58573  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:22:30  

Additional Information
 Earth MOID = 1.84444 au 
 Jupiter MOID = 1.71821 au 
 T_jup = 3.233 
[ 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 15.4   n/a MPO260126  
diameter diameter 6.250 km 1.652 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146867 (2002 AC176)          Discovered 2002-Jan-14 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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Alternate Designations
 2002 AC176 = 1994 RW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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