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JPL Small-Body Database Browser
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243937 (2001 PZ21)
Classification: Main-belt Asteroid          SPK-ID: 2243937
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1994365969737791 4.503e-08  
a 2.728950911245342 1.6163e-08 au
q 2.184698228198078 1.2303e-07 au
i 4.954557222932223 5.0699e-06 deg
node 286.7863939359318 6.5264e-05 deg
peri 13.92184196458787 6.6843e-05 deg
M 350.0544177896377 1.3571e-05 deg
tp 2458645.990396594638
(2019-Jun-11.49039659)
6.2168e-05 TDB
period 1646.614791138811
4.51
1.4629e-05
4.005e-08
d
yr
n .2186303693719533 1.9424e-09 deg/d
Q 3.273203594292606 1.9387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      6668 days (18.26 yr)  
   first obs. used      2001-07-29  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61194  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:17:38  

Additional Information
 Earth MOID = 1.16874 au 
 Jupiter MOID = 1.95677 au 
 T_jup = 3.321 
[ 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 16.2   n/a MPO437138  
diameter diameter 1.716 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243937 (2001 PZ21)          Discovered 2001-Aug-10 by NEAT at Haleakala
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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