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JPL Small-Body Database Browser
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12878 Erneschiller (1998 QH11)
Classification: Main-belt Asteroid          SPK-ID: 2012878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09747993068147019 4.2494e-08  
a 2.625604800253377 1.2301e-08 au
q 2.369661026327742 1.1519e-07 au
i 3.640289359675787 3.7979e-06 deg
node 94.45011621092497 6.9059e-05 deg
peri 243.6402780541337 7.1574e-05 deg
M 296.4891562928644 1.8935e-05 deg
tp 2458874.649744082372
(2020-Jan-26.14974408)
8.2219e-05 TDB
period 1553.969402843338
4.25
1.0921e-05
2.99e-08
d
yr
n .2316647929755236 1.628e-09 deg/d
Q 2.881548574179011 1.35e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      21387 days (58.55 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:06:10  

Additional Information
 Earth MOID = 1.3621 au 
 Jupiter MOID = 2.43466 au 
 T_jup = 3.393 
[ 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 14.3   n/a MPO473941  
diameter diameter 4.290 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.74 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
geometric albedo albedo 0.287   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12878 Erneschiller           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Ernest Schiller (b. 1949), a 2002 Intel Excellence in Teaching Award finalist, is a teacher at the Central Lee High School, Donnellson, Iowa, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 QH11 = 9585 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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