Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
25594 Kessler (1999 YA9)
Classification: Main-belt Asteroid          SPK-ID: 2025594
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05932794269119707 4.0381e-08  
a 2.976706633288558 1.7455e-08 au
q 2.800104752740308 1.207e-07 au
i 10.62851792246206 4.4306e-06 deg
node 106.1440768164152 2.318e-05 deg
peri 240.4206174796684 4.4259e-05 deg
M 113.266706169662 3.7854e-05 deg
tp 2458410.295861761263
(2018-Oct-18.79586176)
0.00019761 TDB
period 1875.868884610114
5.14
1.6499e-05
4.517e-08
d
yr
n .1919110674277342 1.688e-09 deg/d
Q 3.153308513836808 1.849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1543  
   data-arc span      7889 days (21.60 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:55:44  

Additional Information
 Earth MOID = 1.80861 au 
 Jupiter MOID = 2.13796 au 
 T_jup = 3.232 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO365554  
diameter diameter 7.347 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.157   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

25594 Kessler           Discovered 1999 Dec. 29 by G. Hug and G. Bell at Farpoint Observatory.
Marvin Kessler (b. 1918) has been a member of the Northeast Kansas Amateur Astronomer's League for over twenty years. He has been quietly but enthusiastically showing the wonders of the night sky to anyone interested from preschool age children to senior adults. His zeal and patience in this endeavor have been exemplary.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-30 14:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin