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32816 (1991 PP1)
Classification: Main-belt Asteroid          SPK-ID: 2032816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2181710914322416 4.2378e-08  
a 2.776746529078604 1.1872e-08 au
q 2.170940708198836 1.1674e-07 au
i .8645216122160337 4.2937e-06 deg
node 321.5090002852138 0.00026635 deg
peri 342.3814491401623 0.00026652 deg
M 4.86322022905792 9.1373e-06 deg
tp 2458577.669037564708
(2019-Apr-04.16903756)
4.2858e-05 TDB
period 1690.0625695697
4.63
1.0838e-05
2.967e-08
d
yr
n .2130098651268622 1.366e-09 deg/d
Q 3.382552349958372 1.4462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      858  
   data-arc span      15440 days (42.27 yr)  
   first obs. used      1977-07-20  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54866  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:28:06  

Additional Information
 Earth MOID = 1.15496 au 
 Jupiter MOID = 1.86718 au 
 T_jup = 3.300 
[ 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 15.2   n/a MPO431869  
diameter diameter 4.004 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

32816 (1991 PP1)          Discovered 1991-Aug-02 by Elst, E. W. at La Silla
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PP1 = 1996 TX65 = 2000 MA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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