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 ]  
85870 (1999 BF18)
Classification: Main-belt Asteroid          SPK-ID: 2085870
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1649579453027591 5.7052e-08  
a 2.642668088510388 1.7998e-08 au
q 2.206738990512545 1.5678e-07 au
i 12.51934208776797 4.6044e-06 deg
node 314.9301803388925 2.3702e-05 deg
peri 200.0102749066026 2.8614e-05 deg
M 316.139966400604 1.9943e-05 deg
tp 2459191.673995435257
(2020-Dec-08.17399544)
8.8081e-05 TDB
period 1569.142399326399
4.30
1.603e-05
4.389e-08
d
yr
n .2294246845630713 2.3437e-09 deg/d
Q 3.078597186508232 2.0966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      831  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53645  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:40:21  

Additional Information
 Earth MOID = 1.22175 au 
 Jupiter MOID = 1.95891 au 
 T_jup = 3.341 
[ 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 14.7   n/a MPO412683  
diameter diameter 4.859 km 0.327 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.030   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

85870 (1999 BF18)          Discovered 1999-Jan-16 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 BF18 = 2001 RP35 = 2002 TU180 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-15 06:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin