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 ]  
21242 (1995 WZ41)
Classification: Main-belt Asteroid          SPK-ID: 2021242
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2809361464995789 1.7553e-08  
a 2.341015169643721 6.2337e-09 au
q 1.683339388986956 4.0555e-08 au
i 23.4164009977724 2.1403e-06 deg
node 236.8854655389101 2.4011e-06 deg
peri 149.1730606868388 3.4656e-06 deg
M 24.52079545279234 3.0339e-06 deg
tp 2459111.387870406436
(2020-Sep-18.88787041)		 1.1024e-05 TDB
period 1308.292249957566
3.58		 5.2256e-06
1.431e-08		 d
yr
n .2751678762995625 1.0991e-09 deg/d
Q 2.998690950300486 7.985e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1967  
   data-arc span      16360 days (44.79 yr)  
   first obs. used      1976-05-30  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:42:12  

Additional Information
 Earth MOID = .717859 au 
 Jupiter MOID = 2.51191 au 
 T_jup = 3.404 
[ 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 13.72   n/a E2021B10  

21242 (1995 WZ41)          Discovered 1995-Nov-25 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WZ41 = 1998 MR5 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 12:15 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin