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11458 Rosemarypike (1981 EV12)
Classification: Main-belt Asteroid          SPK-ID: 2011458
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221428160445978 4.5473e-08  
a 3.025168901421824 1.5746e-08 au
q 2.65566625279162 1.3987e-07 au
i 8.919634030504923 5.4934e-06 deg
node 330.8170914200358 2.2e-05 deg
peri 54.71465684631028 3.1399e-05 deg
M 350.4084232303417 1.9643e-05 deg
tp 2459251.704764621846
(2021-Feb-06.20476462)
0.00010476 TDB
period 1921.86495573673
5.26
1.5005e-05
4.108e-08
d
yr
n .1873180521479446 1.4625e-09 deg/d
Q 3.394671550052028 1.7669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2090  
   data-arc span      14609 days (40.00 yr)  
   first obs. used      1981-02-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:47:16  

Additional Information
 Earth MOID = 1.66938 au 
 Jupiter MOID = 2.14829 au 
 T_jup = 3.215 
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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 13.33   n/a E2021B10  
diameter diameter 7.901 km 1.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.215   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11458 Rosemarypike           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring.
Rosemary E. Pike (b. 1984) is a postdoctoral fellow at the Institute of Astronomy and Astrophysics, Academia Sinica (Taiwan) who studies complex resonances in the Kuiper belt, particularly the stability of the 5:1 resonance with Neptune.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

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Alternate Designations
 1981 EV12 = 1989 WR7 = 1996 BD18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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