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3896 Pordenone (1987 WB)
Classification: Main-belt Asteroid          SPK-ID: 2003896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04366017238588395 1.455e-08  
a 3.004917263732394 1.5403e-08 au
q 2.873722057992519 4.4026e-08 au
i 9.676162178142485 6.7497e-07 deg
node 232.7813499263863 9.139e-06 deg
peri 313.433627000906 3.3773e-05 deg
M 358.717438655465 2.96e-05 deg
tp 2459207.278332221178
(2020-Dec-23.77833222)
0.00015644 TDB
period 1902.598741199994
5.21
1.4629e-05
4.005e-08
d
yr
n .1892148839397125 1.4549e-09 deg/d
Q 3.136112469472269 1.6076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3100  
   data-arc span      25728 days (70.44 yr)  
   first obs. used      1950-10-13  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41314  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:17:23  

Additional Information
 Earth MOID = 1.88039 au 
 Jupiter MOID = 1.87126 au 
 T_jup = 3.228 
[ 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 11.52   n/a MPCxxxxx  
diameter diameter 18.354 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.009 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Kurtenkov, A.; Teneva, D.; Todorov, L.; Stoyanov, S. (2014) Minor Planet Bull. 41, 36.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.172   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3896 Pordenone (1987 WB)          Discovered 1987-Nov-18 by Baur, J. M. at Chions
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 WB = 1950 TD1 = 1951 YN2 = 1979 FH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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