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15954 (1998 BG11)
Classification: Main-belt Asteroid          SPK-ID: 2015954
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02992705480734778 1.8827e-08  
a 2.729354941618193 1.0171e-08 au
q 2.647673386691679 5.275e-08 au
i 6.428910205044756 1.8943e-07 deg
node 106.7488499071687 6.2883e-06 deg
peri 177.7345660352431 3.6067e-05 deg
M 214.9150847862863 3.8311e-05 deg
tp 2459864.255622279754
(2022-Oct-11.75562228)
0.00017616 TDB
period 1646.980484971364
4.51
9.2064e-06
2.521e-08
d
yr
n .2185818249123087 1.2218e-09 deg/d
Q 2.811036496544706 1.0475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2382  
   data-arc span      25391 days (69.52 yr)  
   first obs. used      1951-09-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49003  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:13:20  

Additional Information
 Earth MOID = 1.62932 au 
 Jupiter MOID = 2.23697 au 
 T_jup = 3.345 
[ 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 13.55   n/a E2021B10  
diameter diameter 11.620 km 1.945 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.031 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.061   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15954 (1998 BG11)          Discovered 1998-Jan-23 by LINEAR at Socorro
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BG11 = 1987 SM29 = 1991 PQ13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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