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19967 (1987 SN12)
Classification: Main-belt Asteroid          SPK-ID: 2019967
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152915266176534 5.5289e-08  
a 2.565244690701044 2.1458e-08 AU
q 2.012969245092186 1.3739e-07 AU
i 1.548713152663153 5.5977e-06 deg
node 144.8383057205086 0.00023074 deg
peri 183.8805811682598 0.00023179 deg
M 190.1169632971212 2.0767e-05 deg
tp 2457508.672629916577
(2016-Apr-30.17262992)
8.947e-05 JED
period 1500.692192216078
4.11
1.883e-05
5.155e-08
d
yr
n .2398893003290612 3.01e-09 deg/d
Q 3.117520136309901 2.6078e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      12576 days (34.43 yr)  
   first obs. used      1979-11-16  
   last obs. used      2014-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53306  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:34:53  

Additional Information
 Earth MOID = 1.00059 AU 
 T_jup = 3.399 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO259486  

19967 (1987 SN12)          Discovered 1987-Sep-16 by Debehogne, H. at La Silla (809)
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 SN12 = 1979 WP1 = 1991 PH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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