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 ]  
46548 (1989 SK1)
Classification: Main-belt Asteroid          SPK-ID: 2046548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2218234286288008 3.1126e-08  
a 2.679863705406071 1.1151e-08 au
q 2.085407150015014 8.5272e-08 au
i 4.608253977652814 3.8375e-06 deg
node 56.88774946109768 4.5243e-05 deg
peri 279.0086878814282 4.6275e-05 deg
M 19.73748039147351 8.9247e-06 deg
tp 2458912.646979434050
(2020-Mar-04.14697943)
3.9528e-05 TDB
period 1602.387274183426
4.39
1.0001e-05
2.738e-08
d
yr
n .2246647897172395 1.4023e-09 deg/d
Q 3.274320260797129 1.3625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      11356 days (31.09 yr)  
   first obs. used      1989-09-26  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:46:46  

Additional Information
 Earth MOID = 1.08203 au 
 Jupiter MOID = 2.12937 au 
 T_jup = 3.337 
[ 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 14.9   n/a MPO436107  
diameter diameter 5.881 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46548 (1989 SK1)          Discovered 1989-Sep-26 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 SK1 = 1998 UN24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 15:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin