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15469 Ohmura (1999 BC)
Classification: Main-belt Asteroid          SPK-ID: 2015469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06542164077718092 3.4483e-08  
a 2.912974468357587 1.261e-08 au
q 2.722402899095597 1.0007e-07 au
i 2.09030419481864 4.2037e-06 deg
node 29.9739351692861 9.1831e-05 deg
peri 59.65094613196619 9.6659e-05 deg
M 222.5527224528458 3.1661e-05 deg
tp 2460089.825359311177
(2023-May-25.32535931)
0.0001616 TDB
period 1815.948149765237
4.97
1.1792e-05
3.228e-08
d
yr
n .1982435456907403 1.2873e-09 deg/d
Q 3.103546037619576 1.3435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1787  
   data-arc span      10954 days (29.99 yr)  
   first obs. used      1991-07-11  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54409  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:56:38  

Additional Information
 Earth MOID = 1.73968 au 
 Jupiter MOID = 2.01708 au 
 T_jup = 3.279 
[ 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 14.07   n/a E2021B10  
diameter diameter 5.517 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15469 Ohmura           Discovered 1999 Jan. 16 by T. Kobayashi at Oizumi.
Tsutomu Ohmura (b. 1965) is a computer engineer and amateur astronomer. He is a key member of Ota Astronomical Club and very active in the popularization of astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

Alternate Designations
 1999 BC = 1991 NR9 = 2000 HK12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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