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20574 Ochinero (1999 RZ139)
Classification: Main-belt Asteroid          SPK-ID: 2020574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07074059881800966 3.0067e-08  
a 2.333224785965565 8.1217e-09 au
q 2.168171067429339 6.9712e-08 au
i 6.202400066621428 4.5041e-06 deg
node 201.5553909500036 3.2967e-05 deg
peri 254.2706719630607 4.74e-05 deg
M 183.6565417375366 3.4282e-05 deg
tp 2459638.161434075091
(2022-Feb-27.66143408)
0.00012469 TDB
period 1301.767122687175
3.56
6.797e-06
1.861e-08
d
yr
n .2765471594157867 1.444e-09 deg/d
Q 2.498278504501792 8.6963e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-05-14  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54223  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:02:02  

Additional Information
 Earth MOID = 1.19446 au 
 Jupiter MOID = 2.61354 au 
 T_jup = 3.558 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO381429  
diameter diameter 2.145 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.3729 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.461   0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20574 Ochinero           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Marcia Collin Ochinero mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the St. Andrew School, Orlando, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RZ139 = 1998 HO76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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