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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2159531430534891 4.4848e-08  
a 2.564981421327056 1.7578e-08 au
q 2.011065621517673 1.1604e-07 au
i 1.549166659991536 4.9565e-06 deg
node 144.8445011064583 0.00022724 deg
peri 183.8570968711879 0.0002283 deg
M 22.13317630590209 2.0487e-05 deg
tp 2457508.250078502888
(2016-Apr-29.75007850)
8.5124e-05 JED
period 1500.461175565859
4.11
1.5424e-05
4.223e-08
d
yr
n .2399262345886661 2.4663e-09 deg/d
Q 3.11889722113644 2.1374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      13055 days (35.74 yr)  
   first obs. used      1979-11-16  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53492  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:26:40  

Additional Information
 Earth MOID = .999179 au 
 Jupiter MOID = 2.22651 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
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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