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13651 (1997 BR)
Classification: Apollo [NEO, PHA]          SPK-ID: 2013651
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3055672302206122 3.1853e-08  
a 1.335338632398098 8.2424e-10 au
q .9273029050896305 4.251e-08 au
i 17.24750945501828 6.3507e-06 deg
node 116.6773376027289 1.259e-05 deg
peri 133.7899185390918 1.4416e-05 deg
M 146.839277117279 8.0441e-06 deg
tp 2457370.607245211788
1.2459e-05 JED
period 563.6188991699798
n .638729468671399 5.9139e-10 deg/d
Q 1.743374359706565 1.0761e-09 au
  Orbit Determination Parameters
   # obs. used (total)      647  
   # delay obs. used      0  
   # Doppler obs. used      2  
   data-arc span      12689 days (34.74 yr)  
   first obs. used      1980-02-09  
   last obs. used      2014-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57521  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:20:36  

Additional Information
 Earth MOID = .0142851 au 
 Jupiter MOID = 3.36214 au 
 T_jup = 4.818 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6 mag n/a PDS3 (MPC 38357)  
rotation period rot_per 33.644 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Pravec, P.; et al. (2005) Icarus 173, 108-131.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

13651 (1997 BR)          Discovered 1997-Jan-20 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-04 06:00 UT
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