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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2671312471172606 2.6217e-08  
a 2.234787102536882 6.6754e-09 au
q 1.637805636794636 5.911e-08 au
i 6.96751221047725 4.1356e-06 deg
node 177.8425468194348 2.4307e-05 deg
peri 121.0721678737216 2.5802e-05 deg
M 249.6799295093236 1.0119e-05 deg
tp 2459374.442382900171
(2021-Jun-08.94238290)
3.5491e-05 TDB
period 1220.260803363417
3.34
5.4674e-06
1.497e-08
d
yr
n .2950189000644193 1.3218e-09 deg/d
Q 2.831768568279129 8.4586e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1282  
   data-arc span      25495 days (69.80 yr)  
   first obs. used      1950-04-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51942  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 02:48:33  

Additional Information
 Earth MOID = .636224 au 
 Jupiter MOID = 2.4407 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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