Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
15717 (1990 BL1)
Classification: Main-belt Asteroid          SPK-ID: 2015717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593103322697309 1.5232e-08  
a 2.618720274065347 8.6497e-09 au
q 2.201531077082516 3.9311e-08 au
i 12.92351223439583 6.8228e-07 deg
node 177.1211706226756 2.1288e-06 deg
peri 258.4704926634474 6.9513e-06 deg
M 182.4835067894917 6.3522e-06 deg
tp 2460159.752616591499
(2023-Aug-03.25261659)
2.9308e-05 TDB
period 1547.861480381443
4.24
7.669e-06
2.1e-08
d
yr
n .2325789513873583 1.1523e-09 deg/d
Q 3.035909471048178 1.0028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2474  
   data-arc span      13867 days (37.97 yr)  
   first obs. used      1983-07-09  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:54:32  

Additional Information
 Earth MOID = 1.25766 au 
 Jupiter MOID = 2.35881 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-29 20:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin