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 ]  
20001 (1991 CM)
Classification: Main-belt Asteroid          SPK-ID: 2020001
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1232019517648847 3.7155e-08  
a 3.115957088659234 1.6993e-08 au
q 2.732065093720789 1.1761e-07 au
i 17.01809285196638 3.8886e-06 deg
node 127.2580047332868 1.523e-05 deg
peri 119.6781122935514 2.3236e-05 deg
M 25.10091230680366 1.6773e-05 deg
tp 2458860.421128352510
(2020-Jan-11.92112835)
9.3495e-05 TDB
period 2009.026332458349
5.50
1.6435e-05
4.5e-08
d
yr
n .1791912799666918 1.4659e-09 deg/d
Q 3.49984908359768 1.9087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2062  
   data-arc span      10878 days (29.78 yr)  
   first obs. used      1991-01-17  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42986  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:05:22  

Additional Information
 Earth MOID = 1.76163 au 
 Jupiter MOID = 1.83417 au 
 T_jup = 3.139 
[ 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 12.5   n/a MPO474029  
diameter diameter 22.717 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20001 (1991 CM)          Discovered 1991-Feb-05 by Arai, M., Mori, H. at Yorii
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 CM = 1998 MX28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-02 13:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin