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46309 (2001 QA2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2046309
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06494987534424013 3.3562e-08  
a 3.241451056387534 2.1006e-08 au
q 3.030919214340709 1.0739e-07 au
i 11.6841927872223 4.5776e-06 deg
node 183.1866731062677 1.8005e-05 deg
peri 80.53932464261334 3.9592e-05 deg
M 158.1090047118957 3.647e-05 deg
tp 2458064.314880966594
(2017-Nov-06.81488097)
0.00021449 TDB
period 2131.609413810123
5.84
2.072e-05
5.673e-08
d
yr
n .1688864750116306 1.6417e-09 deg/d
Q 3.45198289843436 2.237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      10615 days (29.06 yr)  
   first obs. used      1990-11-10  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:25:32  

Additional Information
 Earth MOID = 2.04573 au 
 Jupiter MOID = 1.63235 au 
 T_jup = 3.148 
[ 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 14.0   n/a MPO502464  
diameter diameter 8.963 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46309 (2001 QA2)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20020822/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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