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 ]  
233114 (2005 ST221)
Classification: Main-belt Asteroid          SPK-ID: 2233114
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1990688498778645 4.4245e-08  
a 2.3125840020327 9.1895e-09 au
q 1.852220564502102 1.0447e-07 au
i 24.38431270392632 5.9573e-06 deg
node 238.9612333865035 1.182e-05 deg
peri 204.5687081163181 2.0364e-05 deg
M 20.22769196510387 1.7e-05 deg
tp 2458928.324710763785
(2020-Mar-19.82471076)
6.0521e-05 TDB
period 1284.531333078555
3.52
7.6565e-06
2.096e-08
d
yr
n .2802578580447787 1.6705e-09 deg/d
Q 2.772947439563299 1.1019e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      7743 days (21.20 yr)  
   first obs. used      1998-11-14  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:16:36  

Additional Information
 Earth MOID = .881667 au 
 Jupiter MOID = 2.58287 au 
 T_jup = 3.440 
[ 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 16.0   n/a MPO503131  
diameter diameter 2.131 km 1.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233114 (2005 ST221)          Discovered 2005-Sep-30 by CSS at Catalina
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-07 10:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin