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215327 (2001 UW38)
Classification: Main-belt Asteroid          SPK-ID: 2215327
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1323130985621636 4.7557e-08  
a 2.743132374999952 1.7808e-08 au
q 2.380180030697521 1.3156e-07 au
i 13.4408184297651 6.1681e-06 deg
node 199.491620538416 1.7762e-05 deg
peri 128.7621349866658 2.7568e-05 deg
M 80.97165864225252 1.9605e-05 deg
tp 2458627.250606789967
(2019-May-23.75060679)
9.0509e-05 TDB
period 1659.46682837858
4.54
1.616e-05
4.424e-08
d
yr
n .2169371474280967 2.1125e-09 deg/d
Q 3.106084719302382 2.0165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      422  
   data-arc span      21616 days (59.18 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48257  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:10:47  

Additional Information
 Earth MOID = 1.39592 au 
 Jupiter MOID = 2.37088 au 
 T_jup = 3.297 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457625.5 (2016-Aug-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13447433536176 4.7711e-08  
q 2.372796330894432 1.3225e-07 au
tp 2456967.488858294358
(2014-Nov-05.98885829)
9.1069e-05 TDB
node 199.5274278830749 1.7744e-05 deg
peri 128.5983234016535 2.7282e-05 deg
i 13.45049900687654 6.1742e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      422  
   data-arc span      21616 days (59.18 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48257  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:10:47  

Additional Information
 Jupiter MOID = 2.37088 au 
 T_jup = 3.297 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.276318439359169E-15 -6.266888986679128E-15 1.507244237774783E-12 9.493511956322143E-17 2.868954333118423E-13 -1.221690278379138E-15
q -6.266888986679128E-15 1.749026521633507E-14 -4.468147586866941E-12 -1.045743650006758E-15 -8.393113596956774E-13 4.285869411291608E-15
tp 1.507244237774783E-12 -4.468147586866941E-12 8.293602067510005E-9 -6.697991025388187E-12 1.890495209180897E-9 -1.657357973008476E-12
node 9.493511956322143E-17 -1.045743650006758E-15 -6.697991025388187E-12 3.148375708751328E-10 -3.073100652545974E-10 -7.360083414787591E-12
peri 2.868954333118423E-13 -8.393113596956774E-13 1.890495209180897E-9 -3.073100652545974E-10 7.442922560344873E-10 6.980336415851467E-12
i -1.221690278379138E-15 4.285869411291608E-15 -1.657357973008476E-12 -7.360083414787591E-12 6.980336415851467E-12 3.812079714814477E-11

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 15.9   n/a MPO494186  
diameter diameter 4.219 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215327 (2001 UW38)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2001 UW38 = 1960 SZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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