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JPL Small-Body Database Browser
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193901 (2001 QZ237)
Classification: Main-belt Asteroid          SPK-ID: 2193901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1993733927880731 3.4496e-08  
a 2.324972496352559 1.1194e-08 au
q 1.861434841615794 8.0299e-08 au
i 8.187440486125476 5.4291e-06 deg
node 344.4457603274328 2.9731e-05 deg
peri 70.95805484503431 3.3692e-05 deg
M 307.5717720135563 1.5991e-05 deg
tp 2458789.076614647660
(2019-Nov-01.57661465)
5.8193e-05 TDB
period 1294.86698064087
3.55
9.3517e-06
2.56e-08
d
yr
n .2780208356396769 2.0079e-09 deg/d
Q 2.788510151089325 1.3426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      6633 days (18.16 yr)  
   first obs. used      2001-08-24  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55927  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 21:48:29  

Additional Information
 Earth MOID = .890702 au 
 Jupiter MOID = 2.62531 au 
 T_jup = 3.535 
[ 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 16.4   n/a MPO454347  
diameter diameter 2.752 km 0.619 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193901 (2001 QZ237)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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