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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
21937 Basheehan (1999 VV80)
Classification: Main-belt Asteroid          SPK-ID: 2021937
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03436901620284886 3.4223e-08  
a 2.922761029383705 1.4025e-08 au
q 2.822308608207762 1.0058e-07 au
i 1.05510002598724 3.9051e-06 deg
node 230.8653088621412 0.00019117 deg
peri 36.67563013972688 0.00020076 deg
M 250.6195206621253 6.3692e-05 deg
tp 2459951.030847871223
(2023-Jan-06.53084787)
0.00032425 TDB
period 1825.107244383
5.00
1.3137e-05
3.597e-08
d
yr
n .1972486828420335 1.4197e-09 deg/d
Q 3.023213450559649 1.4507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1574  
   data-arc span      10608 days (29.04 yr)  
   first obs. used      1992-04-23  
   last obs. used      2021-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:03:35  

Additional Information
 Earth MOID = 1.80629 au 
 Jupiter MOID = 1.98991 au 
 T_jup = 3.278 
[ 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 14.62   n/a MPCxxxxx  

21937 Basheehan           Discovered 1999 Nov. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Brittany Ann Sheehan (b. 1991) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, & microbiology project. She attends the Bluffton Middle School, Bluffton, Ohio.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

Alternate Designations
 1999 VV80 = 1994 WG9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-21 00:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin