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 ]  
29982 Sarahwu (1999 TT31)
Classification: Main-belt Asteroid          SPK-ID: 2029982
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03050921063112673 4.5019e-08  
a 2.236935408053333 6.1916e-09 au
q 2.168688274520808 1.01e-07 au
i 6.129315166976456 4.543e-06 deg
node 8.235261127459673 2.8304e-05 deg
peri 172.8988618017988 5.8207e-05 deg
M 15.98684832297937 5.0352e-05 deg
tp 2459342.232608504910
(2021-May-07.73260851)
0.00017093 TDB
period 1222.020785056869
3.35
5.0736e-06
1.389e-08
d
yr
n .2945940072396124 1.2231e-09 deg/d
Q 2.305182541585857 6.3805e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1256  
   data-arc span      18315 days (50.14 yr)  
   first obs. used      1971-04-16  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:46:03  

Additional Information
 Earth MOID = 1.17085 au 
 Jupiter MOID = 2.64994 au 
 T_jup = 3.629 
[ 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 15.57   n/a MPCxxxxx  

29982 Sarahwu           Discovered 1999 Oct. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Junyi (Sarah) Wu (b. 1996) was awarded second place in the 2013 Intel International Science and Engineering Fair for her medicine and health sciences project. She attends the Assumption College School, Brantford, Ontario, Canada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-05-14Last Updated: 2014-05-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-27 07:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin