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JPL Small-Body Database Browser
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471240 (2011 BT15)
Classification: Apollo [NEO, PHA]          SPK-ID: 2471240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 71 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .302464391499947 1.5476e-08  
a 1.292908743438886 3.4808e-09 au
q .9018498870896822 2.2251e-08 au
i 1.661415313964737 2.844e-06 deg
node 105.3658249000084 7.9743e-05 deg
peri 308.8104117942498 7.9603e-05 deg
M 154.5524247498959 8.3133e-06 deg
tp 2458769.972066185238
(2019-Oct-13.47206618)
1.1614e-05 TDB
period 536.9702630522485
1.47
2.1685e-06
5.937e-09
d
yr
n .6704281871284391 2.7074e-09 deg/d
Q 1.683967599788089 4.5336e-09 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      3519 days (9.63 yr)  
   first obs. used      2007-07-30  
   last obs. used      2017-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .95794  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:20:09  

Additional Information
 Earth MOID = .000590594 au 
 Jupiter MOID = 3.66779 au 
 T_jup = 4.974 
[ 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 21.7   n/a MPO383348  
rotation period rot_per 0.109138 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]

471240 (2011 BT15)          Discovered 2011-Jan-24 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2016-08-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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