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15717 (1990 BL1)
Classification: Main-belt Asteroid          SPK-ID: 2015717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593129281019896 3.0609e-08  
a 2.619156881091057 9.308e-09 au
q 2.201891329205966 7.8695e-08 au
i 12.92256317744811 4.8282e-06 deg
node 177.119726513418 1.2946e-05 deg
peri 258.5798120402947 2.0817e-05 deg
M 90.25579770424953 1.4671e-05 deg
tp 2458612.337743702741
(2019-May-08.83774370)
6.3177e-05 TDB
period 1548.248598111209
4.24
8.2533e-06
2.26e-08
d
yr
n .2325207983002105 1.2395e-09 deg/d
Q 3.036422432976148 1.0791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2270  
   data-arc span      13510 days (36.99 yr)  
   first obs. used      1983-07-09  
   last obs. used      2020-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44764  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:49  

Additional Information
 Earth MOID = 1.2583 au 
 Jupiter MOID = 2.35782 au 
 T_jup = 3.352 
[ 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 13.5   n/a MPO502289  
diameter diameter 7.012 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.172   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15717 (1990 BL1)          Discovered 1990-Jan-21 by Helin, E. F. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 BL1 = 1999 FW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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