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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05776268349977955 1.4442e-08  
a 2.742281277592208 1.2303e-08 au
q 2.583879752087278 3.9534e-08 au
i 16.315109613455 8.9123e-07 deg
node 85.30615653215744 3.5547e-06 deg
peri 184.9459882239403 2.3676e-05 deg
M 91.22745219911667 2.193e-05 deg
tp 2458780.170888212364
(2019-Oct-23.67088821)
0.0001007 TDB
period 1658.694577080539
4.54
1.1163e-05
3.056e-08
d
yr
n .2170381485382525 1.4606e-09 deg/d
Q 2.900682803097137 1.3014e-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 = 1.56634 au 
 Jupiter MOID = 2.18352 au 
 T_jup = 3.289 
[ 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 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 ]
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