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 ]  
4748 Tokiwagozen (1989 WV)
Classification: Main-belt Asteroid          SPK-ID: 2004748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0576496086702899 1.4437e-08  
a 2.742277720079501 1.2226e-08 au
q 2.584186482651663 3.948e-08 au
i 16.31503327728871 8.9124e-07 deg
node 85.3059877690082 3.5547e-06 deg
peri 184.9000542467044 2.375e-05 deg
M 133.8272303282193 2.2042e-05 deg
tp 2458779.894252060761
(2019-Oct-23.39425206)
0.00010101 TDB
period 1658.691349389145
4.54
1.1093e-05
3.037e-08
d
yr
n .2170385708785297 1.4515e-09 deg/d
Q 2.900368957507339 1.2931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2637  
   data-arc span      17935 days (49.10 yr)  
   first obs. used      1972-01-05  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37814  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:42:58  

Additional Information
 Earth MOID = 1.56837 au 
 Jupiter MOID = 2.18257 au 
 T_jup = 3.289 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457390.5 (2016-Jan-03.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05719514488815748 1.4542e-08  
q 2.586740746925955 3.9897e-08 au
tp 2457128.696019749710
(2015-Apr-16.19601975)
0.00010102 TDB
node 85.33463399718427 3.5548e-06 deg
peri 186.8317230614058 2.3784e-05 deg
i 16.31452095660269 8.9046e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2637  
   data-arc span      17935 days (49.10 yr)  
   first obs. used      1972-01-05  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37814  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:42:58  

Additional Information
 Jupiter MOID = 2.18257 au 
 T_jup = 3.289 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.114834034326685E-16 -5.556677016205339E-16 3.345694962689219E-13 -2.700543185640979E-14 9.681337632403349E-14 -7.972924882862895E-15
q -5.556677016205339E-16 1.591747194810891E-15 -9.385911348979695E-13 7.714681652942579E-14 -2.726636996785758E-13 2.265446649552597E-14
tp 3.345694962689219E-13 -9.385911348979695E-13 1.020467568833854E-8 3.37389034979571E-11 2.384566884169745E-9 5.563026076919276E-12
node -2.700543185640979E-14 7.714681652942579E-14 3.37389034979571E-11 1.263672824611034E-11 -2.09918068880108E-12 1.792177161459702E-12
peri 9.681337632403349E-14 -2.726636996785758E-13 2.384566884169745E-9 -2.09918068880108E-12 5.656768731882604E-10 1.868100745909767E-14
i -7.972924882862895E-15 2.265446649552597E-14 5.563026076919276E-12 1.792177161459702E-12 1.868100745909767E-14 7.929139903519528E-13

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 11.69   n/a E2021B10  
diameter diameter 11.938 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 39.78 h n/a LCDB (Rev. 2020-October); 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:
[Marchini, A.; Franco, L.; Papini, R.; Banfi, M.; et al. (2019) Minor Planet Bull. 46, 504-505.]
geometric albedo albedo 0.349   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   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)

4748 Tokiwagozen (1989 WV)          Discovered 1989-Nov-20 by Suzuki and Urata at Toyota
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 WV = 1972 AG = 1980 WK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-24 21:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin