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115312 Whither (2003 SP215)
Classification: Main-belt Asteroid          SPK-ID: 2115312
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342274305804561 4.9976e-08  
a 2.401164341083883 1.1459e-08 au
q 2.07886222117878 1.1877e-07 au
i 2.972282433516453 5.2936e-06 deg
node 198.007589921188 7.199e-05 deg
peri 186.4504984177569 7.353e-05 deg
M 227.9768576461244 1.6231e-05 deg
tp 2459698.900901577797
(2022-Apr-29.40090158)
6.2989e-05 TDB
period 1359.036918596262
3.72
9.7284e-06
2.663e-08
d
yr
n .2648934661553131 1.8962e-09 deg/d
Q 2.723466460988987 1.2997e-08 au
  Orbit Determination Parameters
   # obs. used (total)      669  
   data-arc span      7583 days (20.76 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53857  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:43:00  

Additional Information
 Earth MOID = 1.08119 au 
 Jupiter MOID = 2.72243 au 
 T_jup = 3.512 
[ 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 16.16   n/a E2021B55  
diameter diameter 3.377 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115312 Whither           Discovered 2003 Sept. 19 by J. W. Young at Table Mountain Observatory.
Whitney Young (b. 1990) and Heather Young (b. 1992) are granddaughters of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 2003 SP215 = 1999 RC73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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