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4670 Yoshinogawa (1987 YJ)
Classification: Main-belt Asteroid          SPK-ID: 2004670
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09293639391757411 4.0006e-08  
a 2.240315231254221 8.4783e-09 au
q 2.032108412422838 8.9654e-08 au
i 5.018405353089172 4.5686e-06 deg
node 314.8292349909311 4.165e-05 deg
peri 181.6565991718298 4.7148e-05 deg
M 213.683819336132 2.0313e-05 deg
tp 2459498.296661306345
(2021-Oct-10.79666131)
6.8852e-05 TDB
period 1224.791388465612
3.35
6.9527e-06
1.904e-08
d
yr
n .2939276054602237 1.6685e-09 deg/d
Q 2.448522050085605 9.2662e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2069  
   data-arc span      14138 days (38.71 yr)  
   first obs. used      1980-12-10  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41585  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:39:36  

Additional Information
 Earth MOID = 1.04582 au 
 Jupiter MOID = 2.5701 au 
 T_jup = 3.624 
[ 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 13.8   n/a MPO337291  
diameter diameter 4.394 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 17.130 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.303   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4670 Yoshinogawa (1987 YJ)          Discovered 1987-Dec-19 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 YJ = 1980 XX1 = 1986 PF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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