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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1340233481090883 2.593e-08  
a 2.599526223277089 9.9321e-09 au
q 2.25112901533612 6.5861e-08 au
i 14.85200149668838 6.5829e-07 deg
node 180.7369330435571 2.1849e-06 deg
peri 227.0708847087178 7.6167e-06 deg
M 164.6076112663532 6.1844e-06 deg
tp 2458500.517563747691
(2019-Jan-17.01756375)
2.46e-05 TDB
period 1530.875000932235
4.19
8.7736e-06
2.402e-08
d
yr
n .2351596307868219 1.3477e-09 deg/d
Q 2.947923431218058 1.1263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2199  
   data-arc span      24810 days (67.93 yr)  
   first obs. used      1953-04-15  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46402  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:40:43  

Additional Information
 Earth MOID = 1.28176 au 
 Jupiter MOID = 2.55532 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457079.5 (2015-Feb-26.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1317654818350159 2.5732e-08  
q 2.257995517971988 6.5192e-08 au
tp 2456968.110280784244
(2014-Nov-06.61028078)
2.3875e-05 TDB
node 180.7712610178859 2.1862e-06 deg
peri 227.0890610974995 7.7786e-06 deg
i 14.84142895169446 6.5741e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2199  
   data-arc span      24810 days (67.93 yr)  
   first obs. used      1953-04-15  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46402  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:40:43  

Additional Information
 Jupiter MOID = 2.55532 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.621286350431547E-16 -1.663642041475132E-15 -4.561325835674603E-13 -7.264126734775847E-15 -1.446824098173797E-13 -2.215766034297964E-15
q -1.663642041475132E-15 4.250036207141195E-15 1.181945685643053E-12 1.839996782216087E-14 3.748462210369405E-13 5.656388034562257E-15
tp -4.561325835674603E-13 1.181945685643053E-12 5.70034616292062E-10 -8.48965982596614E-13 1.786493671708806E-10 1.808335959714827E-12
node -7.264126734775847E-15 1.839996782216087E-14 -8.48965982596614E-13 4.779437955319965E-12 -4.529212762615348E-12 1.06162463331513E-12
peri -1.446824098173797E-13 3.748462210369405E-13 1.786493671708806E-10 -4.529212762615348E-12 6.050659083367659E-11 -5.279878800260092E-13
i -2.215766034297964E-15 5.656388034562257E-15 1.808335959714827E-12 1.06162463331513E-12 -5.279878800260092E-13 4.32190560984708E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.33   n/a E2021B10  
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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