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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2084136190988708 6.1042e-08  
a 2.388934337064915 1.4953e-08 au
q 1.891047886087654 1.4728e-07 au
i 3.571558285138892 7.5675e-06 deg
node 323.1184460499967 7.9416e-05 deg
peri 27.14999278630721 8.0602e-05 deg
M 206.1027704826506 1.7547e-05 deg
tp 2457977.044783324830
(2017-Aug-11.54478332)
6.9209e-05 JED
period 1348.667046495079
3.69
1.2662e-05
3.467e-08
d
yr
n .2669302263561414 2.5061e-09 deg/d
Q 2.886820788042176 1.8069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      720  
   data-arc span      8666 days (23.73 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50186  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:32:25  

Additional Information
 Earth MOID = .883771 au 
 Jupiter MOID = 2.53401 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 15.2 mag n/a MPO337609  

43802 (1991 PY18)          Discovered 1991-Aug-10 by Holt, H. E. at Palomar
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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