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 ]  
20805 (2000 SC220)
Classification: Main-belt Asteroid          SPK-ID: 2020805
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533682782898821 2.0059e-08  
a 2.677731008097707 1.3201e-08 au
q 2.267052013662332 5.4291e-08 au
i 14.23725292630716 9.4922e-07 deg
node 59.87425917821099 4.5445e-06 deg
peri 346.4375287255772 1.0756e-05 deg
M 205.7912644441861 1.0956e-05 deg
tp 2459886.075554939850
(2022-Nov-02.57555494)
5.2061e-05 TDB
period 1600.474829709094
4.38
1.1835e-05
3.24e-08
d
yr
n .2249332468823858 1.6633e-09 deg/d
Q 3.088410002533083 1.5225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1876  
   data-arc span      11954 days (32.73 yr)  
   first obs. used      1987-11-19  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44909  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:31:50  

Additional Information
 Earth MOID = 1.27894 au 
 Jupiter MOID = 2.29975 au 
 T_jup = 3.317 
[ 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 13.24   n/a E2021B10  
diameter diameter 6.319 km 0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.634 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.488   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20805 (2000 SC220)          Discovered 2000-Sep-26 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 SC220 = 1987 WX4 = 1998 HC139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 12:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin