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 ]  
21441 Stevencondie (1998 FC144)
Classification: Main-belt Asteroid          SPK-ID: 2021441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486952447043858 3.4419e-08  
a 2.483425335396388 1.0912e-08 au
q 2.114151797444551 8.6378e-08 au
i 5.142906565766277 4.3664e-06 deg
node 238.441774392425 3.8011e-05 deg
peri 52.34053835680291 4.2873e-05 deg
M 218.1834463623879 2.4122e-05 deg
tp 2459763.618135614732
(2022-Jul-03.11813561)
9.8304e-05 TDB
period 1429.470140272384
3.91
9.4218e-06
2.58e-08
d
yr
n .2518415669259116 1.6599e-09 deg/d
Q 2.852698873348226 1.2535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1651  
   data-arc span      10721 days (29.35 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47555  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:38  

Additional Information
 Earth MOID = 1.10071 au 
 Jupiter MOID = 2.31239 au 
 T_jup = 3.456 
[ 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 14.43   n/a E2021B10  
diameter diameter 3.643 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21441 Stevencondie           Discovered 1998 Mar. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Steven Condie mentored a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Illinois Mathematics and Science Academy, Aurora, Illinois.
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 FC144 = 1991 RO21 = 1998 HO60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-10 20:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin