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11442 Seijin-Sanso (1976 UN14)
Classification: Main-belt Asteroid          SPK-ID: 2011442
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03698236194410541 6.1546e-08  
a 2.219027303706041 1.4548e-08 AU
q 2.136962432796532 1.3536e-07 AU
i 5.370261509602543 5.9243e-06 deg
node 53.25629208094388 6.7393e-05 deg
peri 334.4795218640189 0.00011205 deg
M 131.5456153831095 8.972e-05 deg
tp 2456359.319537096020
(2013-Mar-07.81953710)
0.00029994 JED
period 1207.375602621765
3.31
1.1874e-05
3.251e-08
d
yr
n .2981673633443274 2.9322e-09 deg/d
Q 2.30109217461555 1.5086e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      970  
   data-arc span      13730 days (37.59 yr)  
   first obs. used      1976-10-22  
   last obs. used      2014-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50004  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:47:25  

Additional Information
 Earth MOID = 1.14166 AU 
 T_jup = 3.644 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO279636  

11442 Seijin-Sanso           Discovered 1976 Oct. 22 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
Seijin-Sanso, near Kurashiki, Okayama prefecture, is the observing station where famed comet and nova hunter Minoru Honda discovered four of his 12 novae. He was observing there in 1990 on the last night of his life.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1976 UN14 = 1996 VQ21 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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