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 ]  
118444 (1999 VK20)
Classification: Main-belt Asteroid          SPK-ID: 2118444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2230193035938275 3.4918e-08  
a 3.108881843143153 2.1645e-08 au
q 2.415541179529872 1.1096e-07 au
i 15.31051037509975 8.6339e-06 deg
node 339.8202341348181 1.6071e-05 deg
peri 83.57794546613309 2.6576e-05 deg
M 258.348176736485 2.062e-05 deg
tp 2459565.850035145709
(2021-Dec-17.35003515)
0.00011643 TDB
period 2002.187527171536
5.48
2.091e-05
5.725e-08
d
yr
n .1798033376566716 1.8778e-09 deg/d
Q 3.802222506756434 2.6472e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      7630 days (20.89 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48203  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:03:22  

Additional Information
 Earth MOID = 1.48542 au 
 Jupiter MOID = 1.86682 au 
 T_jup = 3.127 
[ 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 13.8   n/a MPO359567  
diameter diameter 4.879 km 0.580 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.269   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

118444 (1999 VK20)          Discovered 1999-Nov-11 by Juels, C. W. at Fountain Hills
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 VK20 = 2001 BR68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-19 22:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin