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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12236245239065 4.5716e-08  
a 3.026333244289797 1.5954e-08 au
q 2.656023686767145 1.4054e-07 au
i 8.918541468068234 5.615e-06 deg
node 330.8156845796932 2.2116e-05 deg
peri 54.57223703116681 3.1536e-05 deg
M 313.0850646748614 1.9846e-05 deg
tp 2459251.100637217332
(2021-Feb-05.60063722)
0.00010553 TDB
period 1922.974608682845
5.26
1.5206e-05
4.163e-08
d
yr
n .1872099602222956 1.4804e-09 deg/d
Q 3.396642801812448 1.7907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1909  
   data-arc span      14522 days (39.76 yr)  
   first obs. used      1981-02-12  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:03  

Additional Information
 Earth MOID = 1.67096 au 
 Jupiter MOID = 2.14504 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 13.3   n/a MPO395111  
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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