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 ]  
21715 Palaniappan (1999 RA110)
Classification: Main-belt Asteroid          SPK-ID: 2021715
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06554029603378062 1.828e-08  
a 2.257957312866291 6.4465e-09 au
q 2.109970122149394 4.1163e-08 au
i 7.591417496519743 5.2733e-07 deg
node 269.8423010832551 8.3499e-06 deg
peri 18.95486714403158 1.7194e-05 deg
M 224.3969975659138 1.8258e-05 deg
tp 2459863.308572087393
(2022-Oct-10.80857209)
6.315e-05 TDB
period 1239.287353044765
3.39
5.3072e-06
1.453e-08
d
yr
n .2904895294182802 1.244e-09 deg/d
Q 2.405944503583187 6.869e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1911  
   data-arc span      9994 days (27.36 yr)  
   first obs. used      1994-01-16  
   last obs. used      2021-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:10:43  

Additional Information
 Earth MOID = 1.09469 au 
 Jupiter MOID = 2.68955 au 
 T_jup = 3.608 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.31   n/a MPCxxxxx  

21715 Palaniappan           Discovered 1999 Sept. 8 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Anand M. Palaniappan (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for his space science project. He also received the Intel Foundation Achievement Award. He attends the David H. Hickman High School, Columbia, Missouri, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050822/MPCPages.arcLast Updated: 2005-08-26

Alternate Designations
 1999 RA110 = 1994 BC3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-30 16:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin