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 ]  
42981 Jenniskens (1999 TY224)
Classification: Main-belt Asteroid          SPK-ID: 2042981
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1432469618898414 1.5865e-07  
a 2.536539124130838 1.603e-08 au
q 2.173187600884376 4.0652e-07 au
i 5.946785769173617 9.5477e-06 deg
node 204.1712225957754 4.5472e-05 deg
peri 28.68889169885806 5.9494e-05 deg
M 193.1581837160456 3.1216e-05 deg
tp 2458284.353671912138
(2018-Jun-14.85367191)
0.00013112 JED
period 1475.573254785083
4.04
1.3988e-05
3.83e-08
d
yr
n .2439729771684117 2.3128e-09 deg/d
Q 2.8998906473773 1.8327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      487  
   data-arc span      22905 days (62.71 yr)  
   first obs. used      1953-04-15  
   last obs. used      2015-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53561  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 22:36:27  

Additional Information
 Earth MOID = 1.16459 au 
 Jupiter MOID = 2.09029 au 
 T_jup = 3.426 
[ 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 15.7 mag n/a MPO347826  

42981 Jenniskens           Discovered 1999 Oct. 2 at Ondřejov.
Peter Jenniskens (b. 1962), meteor astronomer of NASA Ames, organized several successful airborne missions (Leonid multi-instrument aircraft campaigns) to observe the Leonid returns from 1998 to 2002. He has substantially improved our knowledge of the behavior of meteor streams.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-06 05:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin