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146424 (2001 QO231)
Classification: Main-belt Asteroid          SPK-ID: 2146424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187461426041543 3.5568e-08  
a 2.644747861934744 1.3988e-08 au
q 2.148959656216135 9.3086e-08 au
i 12.36396546522505 6.2636e-06 deg
node 308.8283063498423 1.9645e-05 deg
peri 108.5052140609798 2.8205e-05 deg
M 116.9911620266415 1.8735e-05 deg
tp 2458689.965150347309
(2019-Jul-25.46515035)
8.0391e-05 TDB
period 1570.99513066735
4.30
1.2463e-05
3.412e-08
d
yr
n .2291541157400495 1.8179e-09 deg/d
Q 3.140536067653353 1.661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      6853 days (18.76 yr)  
   first obs. used      2001-08-17  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:01:06  

Additional Information
 Earth MOID = 1.19782 au 
 Jupiter MOID = 2.27731 au 
 T_jup = 3.336 
[ 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 15.67   n/a E2021B55  
diameter diameter 2.225 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.247   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146424 (2001 QO231)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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