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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593129289413527 3.0866e-08  
a 2.619156880925854 9.3731e-09 au
q 2.201891326868659 7.9505e-08 au
i 12.922563281661 4.8312e-06 deg
node 177.1197279680325 1.317e-05 deg
peri 258.5798103748862 2.0988e-05 deg
M 90.25579801965596 1.4693e-05 deg
tp 2458612.337742383001
(2019-May-08.83774238)
6.326e-05 TDB
period 1548.248597964725
4.24
8.311e-06
2.275e-08
d
yr
n .2325207983222098 1.2482e-09 deg/d
Q 3.03642243498305 1.0866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2184  
   data-arc span      13443 days (36.80 yr)  
   first obs. used      1983-07-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:14:34  

Additional Information
 Earth MOID = 1.2583 au 
 Jupiter MOID = 2.35782 au 
 T_jup = 3.352 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456899.5 (2014-Aug-30.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577962079088582 3.0582e-08  
q 2.206419238377828 7.8561e-08 au
tp 2457064.984255812409
(2015-Feb-11.48425581)
6.5188e-05 TDB
node 177.1458874713927 1.3174e-05 deg
peri 258.9521854850955 2.1126e-05 deg
i 12.9169965567986 4.8291e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2184  
   data-arc span      13443 days (36.80 yr)  
   first obs. used      1983-07-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:14:34  

Additional Information
 Jupiter MOID = 2.35782 au 
 T_jup = 3.352 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.352862648672885E-16 -2.390968358587544E-15 -1.018321569335444E-12 7.466194341291737E-15 -2.742989953223858E-13 -1.215278793559658E-15
q -2.390968358587544E-15 6.171778714097811E-15 2.558873264110832E-12 -1.954451601743372E-14 6.893404280845632E-13 3.008496260559392E-15
tp -1.018321569335444E-12 2.558873264110832E-12 4.249515549580395E-9 -2.119773457954067E-11 1.082376593577592E-9 3.31880347871898E-12
node 7.466194341291737E-15 -1.954451601743372E-14 -2.119773457954067E-11 1.735454060102558E-10 -1.741770885186991E-10 1.640889681977803E-11
peri -2.742989953223858E-13 6.893404280845632E-13 1.082376593577592E-9 -1.741770885186991E-10 4.463250311831213E-10 -1.519009759403497E-11
i -1.215278793559658E-15 3.008496260559392E-15 3.31880347871898E-12 1.640889681977803E-11 -1.519009759403497E-11 2.33202552866694E-11

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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