Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078022536087293 7.1577e-08  
a 2.389047412171664 1.7033e-08 AU
q 1.892597975944289 1.759e-07 AU
i 3.575019096206044 8.2294e-06 deg
node 323.136843989421 9.3739e-05 deg
peri 26.84948984726746 9.4617e-05 deg
M 99.77101592067459 1.72e-05 deg
tp 2456626.701569456468
(2013-Nov-30.20156946)
6.2215e-05 JED
period 1348.762802041251
3.69
1.4424e-05
3.949e-08
d
yr
n .2669112756187871 2.8544e-09 deg/d
Q 2.885496848399039 2.0572e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      8118 days (22.23 yr)  
   first obs. used      1991-08-07  
   last obs. used      2013-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52595  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 06:06:48  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-23 13:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin