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 ]  
3460 Ashkova (1973 QB2)
Classification: Main-belt Asteroid          SPK-ID: 2003460
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231421675905381 3.8162e-08  
a 3.180219532202164 1.5053e-08 au
q 2.470578452372806 1.2237e-07 au
i 2.374120137819603 3.9775e-06 deg
node 82.41666401511681 9.2839e-05 deg
peri 298.9114572271358 9.32e-05 deg
M 54.3003632082583 7.9027e-06 deg
tp 2458688.047278676585
(2019-Jul-23.54727868)
4.5556e-05 TDB
period 2071.495898563756
5.67
1.4707e-05
4.027e-08
d
yr
n .1737874548772224 1.2339e-09 deg/d
Q 3.889860612031522 1.8411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2331  
   data-arc span      17039 days (46.65 yr)  
   first obs. used      1973-08-31  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:54:27  

Additional Information
 Earth MOID = 1.47469 au 
 Jupiter MOID = 1.57009 au 
 T_jup = 3.159 
[ 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 12.5   n/a MPO337279  
diameter diameter 17.916 km 0.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.562 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.066   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3460 Ashkova (1973 QB2)          Discovered 1973-Aug-31 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1973 QB2 = 1951 WJ2 = 1975 BU1 = 1979 WP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-29 07:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin