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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
21401 Justinkovac (1998 FC58)
Classification: Main-belt Asteroid          SPK-ID: 2021401
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760935595853387 2.7363e-08  
a 2.435323598980848 7.9718e-09 au
q 2.006478797694133 6.94e-08 au
i 2.111546299703069 4.0031e-06 deg
node 350.4569139803098 7.6773e-05 deg
peri 303.1392326913435 7.7838e-05 deg
M 316.1539278808139 1.162e-05 deg
tp 2459565.568085885464
(2021-Dec-17.06808589)
4.492e-05 TDB
period 1388.140555745108
3.80
6.8159e-06
1.866e-08
d
yr
n .259339732212322 1.2734e-09 deg/d
Q 2.864168400267564 9.3755e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1545  
   data-arc span      10006 days (27.39 yr)  
   first obs. used      1994-03-10  
   last obs. used      2021-08-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:59:53  

Additional Information
 Earth MOID = .990965 au 
 Jupiter MOID = 2.32594 au 
 T_jup = 3.483 
[ 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 15.14   n/a MPO636385  
diameter diameter 2.250 km 0.554 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.383   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21401 Justinkovac           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Justin Alexander Kovac (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his earth and planetary science project. He attends the Montgomery Blair High School, Silver Spring, Maryland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050224/MPCPages.arcLast Updated: 2005-02-28

Alternate Designations
 1998 FC58 = 1999 TB30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-24 22:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin