Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
99907 (1989 VA)
Classification: Aten [NEO]          SPK-ID: 2099907
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 80 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5946802606338165 9.495e-08  
a .7284322188667612 1.0952e-09 AU
q .2952479570970064 6.9052e-08 AU
i 28.79771709751979 1.5422e-05 deg
node 225.6055576743791 5.1537e-06 deg
peri 2.840805408041248 1.3522e-05 deg
M 293.9065314406548 4.184e-05 deg
tp 2457042.190604283321
(2015-Jan-19.69060428)
2.6453e-05 JED
period 227.081705184218
0.62
5.1214e-07
1.402e-09
d
yr
n 1.585332467483249 3.5754e-09 deg/d
Q 1.161616480636516 1.7465e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      9126 days (24.99 yr)  
   first obs. used      1989-11-02  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57599  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-29 06:19:45  

Additional Information
 Earth MOID = .155094 AU 
 T_jup = 7.670 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9 mag n/a MPO251027  
diameter diameter 1.4 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)
rotation period rot_per 2.514 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L.; Mottola, S.; et al. (1997) Icarus 130, 275-286.]
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

99907 (1989 VA)          Discovered 1989-Nov-02 by Shoemaker, C. S. at Palomar (675)
Reference: 20050622/Numbers.arcLast Updated: 2005-06-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-30 16:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin