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 ]  
16920 Larrywalker (1998 FR37)
Classification: Main-belt Asteroid          SPK-ID: 2016920
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03592034306350455 3.7169e-08  
a 2.733183357427254 1.357e-08 au
q 2.635006473573006 9.9417e-08 au
i 5.558643158519222 4.031e-06 deg
node 145.4767437869665 3.7867e-05 deg
peri 171.2081875704217 6.7411e-05 deg
M 226.9690775684927 5.7091e-05 deg
tp 2459810.390235131022
(2022-Aug-18.89023513)
0.00026235 TDB
period 1650.446983559114
4.52
1.2292e-05
3.365e-08
d
yr
n .2181227289250311 1.6245e-09 deg/d
Q 2.831360241281502 1.4058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1888  
   data-arc span      13564 days (37.14 yr)  
   first obs. used      1984-01-25  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:46:54  

Additional Information
 Earth MOID = 1.61962 au 
 Jupiter MOID = 2.27436 au 
 T_jup = 3.346 
[ 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 13.87   n/a E2021B10  
rotation period rot_per 61.6442 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.]

16920 Larrywalker           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Larry Walker mentored a finalist in the 2003 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Oak Ridge High School, Conroe, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030216/MPCPages.arcLast Updated: 2011-11-22

[ show close-approach data ]
Alternate Designations
 1998 FR37 = 1984 BW2 = 1986 OP 
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-16 09:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin