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306128 Pipher (2010 JP109)
Classification: Main-belt Asteroid          SPK-ID: 2306128
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08246259481275539 7.0571e-08  
a 3.089190237313562 4.8925e-08 au
q 2.834447594474454 2.4454e-07 au
i 8.529988999176851 6.4774e-06 deg
node 272.3080215695574 4.9896e-05 deg
peri 64.95919242748208 6.7779e-05 deg
M 313.1068150184634 4.8313e-05 deg
tp 2459458.828687612651
(2021-Sep-01.32868761)
0.00026723 TDB
period 1983.194947776973
5.43
4.7113e-05
1.29e-07
d
yr
n .1815252708280321 4.3124e-09 deg/d
Q 3.34393288015267 5.2959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6316 days (17.29 yr)  
   first obs. used      2003-03-30  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48744  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:57:47  

Additional Information
 Earth MOID = 1.83586 au 
 Jupiter MOID = 1.96725 au 
 T_jup = 3.203 
[ 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 15.85   n/a E2021B25  
diameter diameter 4.880 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.032   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

306128 Pipher           Discovered 2010 May 12 at WISE.
Judith Pipher (b. 1940) is an astrophysicist and Emeritus Professor at the University of Rochester. One of the first U.S. astronomers to observe the skies with an infrared array camera, she is known as "the mother of infrared astronomy." She helped build and test infrared detectors for the Spitzer Space Telescope.
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 2018-01-31Last Updated: 2018-02-05

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