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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06661001941974552 3.5922e-08  
a 2.909901233064966 1.2806e-08 au
q 2.716072655420967 1.0354e-07 au
i 2.090596929025311 4.4153e-06 deg
node 30.02885146121989 9.2135e-05 deg
peri 59.69516441840853 9.6913e-05 deg
M 183.60757778237 3.1252e-05 deg
tp 2460088.868647486995
(2023-May-24.36864749)
0.00015956 TDB
period 1813.075125759874
4.96
1.1969e-05
3.277e-08
d
yr
n .1985576851643813 1.3107e-09 deg/d
Q 3.103729810708964 1.3659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1742  
   data-arc span      10595 days (29.01 yr)  
   first obs. used      1991-07-11  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54626  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:59:31  

Additional Information
 Earth MOID = 1.73303 au 
 Jupiter MOID = 2.01867 au 
 T_jup = 3.279 
[ 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 14.07   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

[ show close-approach data ]
Alternate Designations
 1999 BC = 1991 NR9 = 2000 HK12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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