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4504 Jenkinson (1989 YO)
Classification: Main-belt Asteroid          SPK-ID: 2004504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1338912015980996 3.8755e-08  
a 2.599971145225717 1.0318e-08 au
q 2.251857884471059 9.8436e-08 au
i 14.85061514646926 4.5653e-06 deg
node 180.7358084884138 1.1898e-05 deg
peri 227.1315868056431 1.9176e-05 deg
M 117.5170744222006 1.4233e-05 deg
tp 2458500.638498369402
(2019-Jan-17.13849837)
6.0472e-05 TDB
period 1531.268043148463
4.19
9.1155e-06
2.496e-08
d
yr
n .2350992705756457 1.3995e-09 deg/d
Q 2.948084405980376 1.17e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2123  
   data-arc span      24534 days (67.17 yr)  
   first obs. used      1953-04-15  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46041  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:51:04  

Additional Information
 Earth MOID = 1.28363 au 
 Jupiter MOID = 2.55409 au 
 T_jup = 3.356 
[ 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 13.2   n/a MPO358674  
diameter diameter 7.397 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 30.7578 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.169   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4504 Jenkinson (1989 YO)          Discovered 1989-Dec-21 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 YO = 1976 SE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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