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 ]  
21653 Davidwang (1999 OH3)
Classification: Main-belt Asteroid          SPK-ID: 2021653
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214240426523475 5.1692e-08  
a 2.786516762092416 1.8658e-08 au
q 2.189532222466924 1.4493e-07 au
i 18.86885620286616 5.1209e-06 deg
node 243.5725127797966 1.8284e-05 deg
peri 99.10270605394292 2.2603e-05 deg
M 231.723513218134 1.8123e-05 deg
tp 2459805.890320673688
(2022-Aug-14.39032067)
8.9325e-05 TDB
period 1698.990367682389
4.65
1.7064e-05
4.672e-08
d
yr
n .2118905479676614 2.1282e-09 deg/d
Q 3.383501301717908 2.2656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      10158 days (27.81 yr)  
   first obs. used      1993-05-30  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47727  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:15:19  

Additional Information
 Earth MOID = 1.27384 au 
 Jupiter MOID = 2.34498 au 
 T_jup = 3.220 
[ 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 13.71   n/a MPCxxxxx  
diameter diameter 8.821 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.15135 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.069   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21653 Davidwang           Discovered 1999 July 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
David Jueyu Wang (b. 1989) was awarded first place in the 2006 Intel International Science and Engineering Fair for his botany project. He attends the A.B. Lucas Secondary School, London, 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: 20060711/MPCPages.arcLast Updated: 2006-07-17

Alternate Designations
 1999 OH3 = 1998 KN38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-11 14:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin