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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593467940138688 1.6441e-08  
a 2.618742077843209 8.9962e-09 au
q 2.201453923389676 4.1776e-08 au
i 12.92342908566526 6.881e-07 deg
node 177.1211369887419 2.1377e-06 deg
peri 258.517050196192 7.4452e-06 deg
M 136.8345357231127 6.4521e-06 deg
tp 2458612.156799287015
(2019-May-08.65679929)
2.6827e-05 TDB
period 1547.880811941097
4.24
7.9762e-06
2.184e-08
d
yr
n .2325760466973858 1.1985e-09 deg/d
Q 3.036030232296742 1.043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2320  
   data-arc span      13768 days (37.69 yr)  
   first obs. used      1983-07-09  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44914  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:06:18  

Additional Information
 Earth MOID = 1.25734 au 
 Jupiter MOID = 2.35836 au 
 T_jup = 3.352 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.50   n/a MPCxxxxx  
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

Alternate Designations
 1990 BL1 = 1999 FW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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