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11912 Piedade (1992 OP5)
Classification: Main-belt Asteroid          SPK-ID: 2011912
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389582177245468 2.619e-08  
a 2.311615558331375 5.5752e-09 au
q 1.990397580281314 6.0523e-08 au
i 3.35460250925792 3.0331e-06 deg
node 181.950378103244 5.0347e-05 deg
peri 94.1767565043957 5.1706e-05 deg
M 57.92810122654827 1.0946e-05 deg
tp 2458993.934098494481
(2020-May-24.43409849)
3.9043e-05 TDB
period 1283.724530364997
3.51
4.6442e-06
1.272e-08
d
yr
n .2804339961452964 1.0145e-09 deg/d
Q 2.632833536381435 6.3499e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2501  
   data-arc span      10404 days (28.48 yr)  
   first obs. used      1992-07-26  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45425  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:03:02  

Additional Information
 Earth MOID = .975675 au 
 Jupiter MOID = 2.47166 au 
 T_jup = 3.569 
[ 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 14.48   n/a E2021B10  
diameter diameter 4.067 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.142 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.223   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11912 Piedade           Discovered 1992 July 30 by E. W. Elst at the European Southern Observatory.
Serra de Piedade in the Brazilian state of Minas Gerais, east of the capital of Belo Horizonte, is the location of the Piedade Observatory. During the 1970s the discoverer spent many hours there observing variable stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1992 OP5 = 1995 HH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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