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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078022487972747 7.0318e-08  
a 2.389047413305145 1.6785e-08 AU
q 1.892597988337024 1.7254e-07 AU
i 3.57501882376615 8.1345e-06 deg
node 323.1368414176731 9.3151e-05 deg
peri 26.84949222913076 9.4044e-05 deg
M 99.77101545603763 1.7154e-05 deg
tp 2456626.701570931238
(2013-Nov-30.20157093)
6.2083e-05 JED
period 1348.76280300113
3.69
1.4214e-05
3.892e-08
d
yr
n .2669112754288334 2.813e-09 deg/d
Q 2.885496838273267 2.0273e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      8456 days (23.15 yr)  
   first obs. used      1991-08-07  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52427  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:31:11  

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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