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43802 (1991 PY18)
Classification: Main-belt Asteroid          SPK-ID: 2043802
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078022480560934 6.8979e-08  
a 2.389047413325821 1.651e-08 AU
q 1.89259799012412 1.6895e-07 AU
i 3.575019916433977 8.0237e-06 deg
node 323.1368519538482 9.2207e-05 deg
peri 26.84948174772914 9.3123e-05 deg
M 99.77101536793083 1.7121e-05 deg
tp 2456626.701571256483
(2013-Nov-30.20157126)
6.1998e-05 JED
period 1348.762803018639
3.69
1.3981e-05
3.828e-08
d
yr
n .2669112754253685 2.7668e-09 deg/d
Q 2.885496836527522 1.994e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      8483 days (23.23 yr)  
   first obs. used      1991-08-07  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52756  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:22:53  

Additional Information
 Earth MOID = .887509 AU 
 T_jup = 3.501 
[ 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 15.1 mag n/a MPO267850  

43802 (1991 PY18)          Discovered 1991-Aug-10 by Holt, H. E. at Palomar (675)
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PY18 = 1995 UA4 = 1997 BL9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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