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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593467939129902 1.6466e-08  
a 2.618742076263427 9.0028e-09 au
q 2.201453922325802 4.1829e-08 au
i 12.92342908225699 6.8821e-07 deg
node 177.1211370195849 2.1379e-06 deg
peri 258.5170504431795 7.4554e-06 deg
M 136.8345357711943 6.4564e-06 deg
tp 2458612.156799612665
(2019-May-08.65679961)
2.685e-05 TDB
period 1547.880810540435
4.24
7.982e-06
2.185e-08
d
yr
n .2325760469078415 1.1993e-09 deg/d
Q 3.036030230201051 1.0437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2305  
   data-arc span      13744 days (37.63 yr)  
   first obs. used      1983-07-09  
   last obs. used      2021-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:42:58  

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 | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.51   n/a E2021B10  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1933-Oct-27 06:35 < 00:01 Amphi 0.0129773606744386 0.0129701326232399 0.0129845976400699 6.6229989190402 6.6229988521547 2427372.774232514 0.927759304518684 647.918239011307 31.5071677199473 56.2848089746144 51267.8108621504 T 31 CATAB v2.0f-lin.ifort 2021-Mar-17 00:44:02 2021-Mar-17 00:44

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