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JPL Small-Body Database Browser
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12051 Picha (1997 JO)
Classification: Main-belt Asteroid          SPK-ID: 2012051
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711557927910454 3.4941e-08  
a 2.305665932880388 6.9872e-09 au
q 1.91103785222694 8.0372e-08 au
i 9.386618977235909 4.7545e-06 deg
node 355.5357457845541 1.8856e-05 deg
peri 235.4154439654424 2.2472e-05 deg
M 191.4908149496973 1.3088e-05 deg
tp 2459599.068803701386
4.7319e-05 TDB
period 1278.771654305807
n .2815201594341168 1.2797e-09 deg/d
Q 2.700294013533837 8.1831e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1818  
   data-arc span      16012 days (43.84 yr)  
   first obs. used      1976-04-02  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49745  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:13:50  

Additional Information
 Earth MOID = .919711 au 
 Jupiter MOID = 2.33609 au 
 T_jup = 3.551 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO452340  
diameter diameter 6.784 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.0 h n/a LCDB (Rev. 2019-August); 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:
[Behrend, R. (2011) Observatoire de Geneve web site,]
geometric albedo albedo 0.080   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

12051 Pícha           Discovered 1997 May 2 by L. Šarounová at Ondřejov.
Jaroslav Pícha (1921-1998) was a Czech meteorologist and amateur astronomer. The observatory he built in Hradec Králové for the systematic monitoring of solar radiation and the ozone layer became one of the most respected in the world. The name was suggested by M. Lehký.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1997 JO = 1976 GQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-May-31 16:42 UT
(server date/time)  
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