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 ]  
129994 (1999 VQ18)
Classification: Main-belt Asteroid          SPK-ID: 2129994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233187741927311 3.8293e-08  
a 2.534443925361438 1.243e-08 au
q 2.221899407225651 9.6226e-08 au
i 12.38728439230826 7.9377e-06 deg
node 27.7189689272676 1.4275e-05 deg
peri 249.8107706749183 3.7103e-05 deg
M 139.906418924621 3.2077e-05 deg
tp 2458427.759892261619
(2018-Nov-05.25989226)
0.00013174 TDB
period 1473.74538188206
4.03
1.0841e-05
2.968e-08
d
yr
n .2442755746180922 1.797e-09 deg/d
Q 2.846988443497224 1.3962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      9803 days (26.84 yr)  
   first obs. used      1993-01-24  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56536  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:37:05  

Additional Information
 Earth MOID = 1.2415 au 
 Jupiter MOID = 2.30558 au 
 T_jup = 3.406 
[ 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 16.2   n/a MPO449743  
diameter diameter 3.556 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

129994 (1999 VQ18)          Discovered 1999-Nov-02 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 VQ18 = 1995 TM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 01:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin