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 ]  
101859 (1999 LA)
Classification: Main-belt Asteroid          SPK-ID: 2101859
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08053560859631065 3.7388e-08  
a 2.234347803336411 9.0854e-09 au
q 2.054403243178883 8.5254e-08 au
i 7.180534039008406 3.7162e-06 deg
node 244.5137972515222 3.0971e-05 deg
peri 161.7735925833967 4.0592e-05 deg
M 350.0744347273521 2.4905e-05 deg
tp 2459234.133908757926
(2021-Jan-19.63390876)
8.4375e-05 TDB
period 1219.901015231869
3.34
7.4407e-06
2.037e-08
d
yr
n .2951059106476553 1.8e-09 deg/d
Q 2.414292363493939 9.8171e-09 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      7894 days (21.61 yr)  
   first obs. used      1999-06-02  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:02  

Additional Information
 Earth MOID = 1.06482 au 
 Jupiter MOID = 2.86973 au 
 T_jup = 3.625 
[ 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 16.78   n/a E2021B55  

101859 (1999 LA)          Discovered 1999-Jun-02 by Zoltowski, F. B. at Woomera
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 LA = 2000 UR56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-20 05:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin