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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3024867503159511 1.6158e-08  
a 1.293120244896053 3.7525e-09 au
q .9019685042496788 2.3314e-08 au
i 1.661390696131342 2.9586e-06 deg
node 105.368835026763 8.1191e-05 deg
peri 308.8022557287211 8.0921e-05 deg
M 246.4017882088773 7.9701e-06 deg
tp 2458769.982861381714
(2019-Oct-13.48286138)
1.2512e-05 TDB
period 537.1020294721318
1.47
2.3379e-06
6.401e-09
d
yr
n .6702637120060986 2.9176e-09 deg/d
Q 1.684271985542427 4.8876e-09 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   # 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      .9481  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-24 06:19:22  

Additional Information
 Earth MOID = .000605727 au 
 Jupiter MOID = 3.66706 au 
 T_jup = 4.974 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456722.5 (2014-Mar-06.0) TDB
Reference: JPL 70 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3029859089844094 1.6226e-08  
q .9023691201247691 2.3159e-08 au
tp 2456619.658205032196
(2013-Nov-23.15820503)
6.7088e-06 TDB
node 105.7581178854927 8.0671e-05 deg
peri 308.2760974370938 8.0363e-05 deg
i 1.665066300124453 2.9688e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      201  
   # 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      .9481  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-24 06:19:22  

Additional Information
 Jupiter MOID = 3.66706 au 
 T_jup = 4.974 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.632823410737972E-16 -3.751976064622553E-16 -1.403137806586425E-14 -1.705454272651213E-13 1.19300621512169E-13 -1.048097985670705E-14
q -3.751976064622553E-16 5.363493795455062E-16 2.210140241587387E-14 2.270592117826574E-13 -1.516272311885548E-13 1.440711633149063E-14
tp -1.403137806586425E-14 2.210140241587387E-14 4.50083706559031E-11 5.953048326684876E-11 -1.156050193346869E-11 4.069001960921801E-12
node -1.705454272651213E-13 2.270592117826574E-13 5.953048326684876E-11 6.507819420096083E-9 -6.454813183622998E-9 1.625713645089807E-10
peri 1.19300621512169E-13 -1.516272311885548E-13 -1.156050193346869E-11 -6.454813183622998E-9 6.458207355506134E-9 -1.578204187296093E-10
i -1.048097985670705E-14 1.440711633149063E-14 4.069001960921801E-12 1.625713645089807E-10 -1.578204187296093E-10 8.813937132957575E-12

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-January); 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

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