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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06722996423400698 3.6504e-08  
a 2.908220875774498 1.4346e-08 au
q 2.712701290311586 1.063e-07 au
i 2.09119860045745 4.5911e-06 deg
node 30.04719229663582 0.00010708 deg
peri 59.60526212351368 0.00011209 deg
M 143.9418900999839 3.2938e-05 deg
tp 2458276.190454731992
(2018-Jun-06.69045473)
0.0001651 TDB
period 1811.504879610527
4.96
1.3404e-05
3.67e-08
d
yr
n .1987297986618727 1.4705e-09 deg/d
Q 3.103740461237411 1.5311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1551  
   data-arc span      10428 days (28.55 yr)  
   first obs. used      1991-07-11  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55938  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:19:13  

Additional Information
 Earth MOID = 1.72995 au 
 Jupiter MOID = 2.02037 au 
 T_jup = 3.280 
[ 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 14.1   n/a MPO467860  
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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