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 ]  
233958 (2009 YP21)
Classification: Main-belt Asteroid          SPK-ID: 2233958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .149637029923274 4.3847e-08  
a 2.767791385964764 3.0741e-08 au
q 2.353627303521775 1.1712e-07 au
i 3.083715280860448 7.6426e-06 deg
node 1.957198515317765 9.1002e-05 deg
peri 94.64493886186264 9.7505e-05 deg
M 104.0529798461213 3.7668e-05 deg
tp 2458514.372177063120
(2019-Jan-30.87217706)
0.00017004 TDB
period 1681.893363516204
4.60
2.802e-05
7.671e-08
d
yr
n .2140444857023373 3.5659e-09 deg/d
Q 3.181955468407754 3.5341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      7009 days (19.19 yr)  
   first obs. used      2001-02-17  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 11:14:39  

Additional Information
 Earth MOID = 1.37289 au 
 Jupiter MOID = 1.98777 au 
 T_jup = 3.320 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO273545  
diameter diameter 2.642 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233958 (2009 YP21)          Discovered 2009-Dec-27 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2009 YP21 = 2004 XF149 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-24 21:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin