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249858 (2001 QZ118)
Classification: Main-belt Asteroid          SPK-ID: 2249858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08249343181904964 4.7618e-08  
a 2.73040878990088 2.0219e-08 au
q 2.505167998553057 1.3428e-07 au
i 6.077003651548631 5.3101e-06 deg
node 246.7572840745894 5.2758e-05 deg
peri 62.95595807402885 6.4373e-05 deg
M 84.63732255787021 3.6491e-05 deg
tp 2458613.064552925683
(2019-May-09.56455293)
0.00016679 TDB
period 1647.934465925335
4.51
1.8304e-05
5.011e-08
d
yr
n .218455288995886 2.4265e-09 deg/d
Q 2.955649581248701 2.1887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      7998 days (21.90 yr)  
   first obs. used      1997-11-08  
   last obs. used      2019-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52504  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:47:42  

Additional Information
 Earth MOID = 1.49765 au 
 Jupiter MOID = 2.22954 au 
 T_jup = 3.341 
[ 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 15.9   n/a MPO440261  
diameter diameter 4.126 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249858 (2001 QZ118)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 2001 QZ118 = 2001 SW352 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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