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JPL Small-Body Database Browser
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32581 (2001 QW98)
Classification: Mars-crossing Asteroid          SPK-ID: 2032581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2669102645079944 2.6224e-08  
a 2.235219210942194 6.6984e-09 au
q 1.638616260116262 5.9123e-08 au
i 6.966328764216362 4.4965e-06 deg
node 177.8558222813527 2.5961e-05 deg
peri 121.0194602225261 2.7686e-05 deg
M 131.7505486487383 1.0096e-05 deg
tp 2458153.787052086178
(2018-Feb-04.28705209)
3.3022e-05 TDB
period 1220.61473670012
3.34
5.4868e-06
1.502e-08
d
yr
n .2949333554445236 1.3258e-09 deg/d
Q 2.831822161768125 8.4863e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1201  
   data-arc span      25102 days (68.73 yr)  
   first obs. used      1950-04-17  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52213  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:32:33  

Additional Information
 Earth MOID = .636285 au 
 Jupiter MOID = 2.43841 au 
 T_jup = 3.582 
[ 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 15.2   n/a MPO259561  

32581 (2001 QW98)          Discovered 2001-Aug-21 by LINEAR at Socorro
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 QW98 = 1991 TK14 = 1997 EC18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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