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15473 (1999 BL9)
Classification: Main-belt Asteroid          SPK-ID: 2015473
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390086395733486 1.9539e-08  
a 2.562984813477736 8.5854e-09 au
q 2.206707781309043 4.8689e-08 au
i 14.99130541262296 1.074e-06 deg
node 185.640376696781 3.5939e-06 deg
peri 267.5824230165897 6.6546e-06 deg
M 201.7804148027026 6.8868e-06 deg
tp 2459859.181122560696
(2022-Oct-06.68112256)
3.0937e-05 TDB
period 1498.709554990673
4.10
7.5305e-06
2.062e-08
d
yr
n .2402066489809231 1.207e-09 deg/d
Q 2.919261845646429 9.7788e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2602  
   data-arc span      16111 days (44.11 yr)  
   first obs. used      1976-09-24  
   last obs. used      2020-11-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:59:37  

Additional Information
 Earth MOID = 1.2818 au 
 Jupiter MOID = 2.37382 au 
 T_jup = 3.373 
[ 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 12.77   n/a E2021B10  
diameter diameter 6.975 km 0.337 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.46844 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 0.331   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15473 (1999 BL9)          Discovered 1999-Jan-23 by Korlevic, K. at Visnjan
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 BL9 = 1976 SM1 = 1984 SX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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