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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
2802 Weisell (1939 BU)
Classification: Main-belt Asteroid          SPK-ID: 2002802
[ 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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1232785338251914 3.7749e-08  
a 3.112516577878382 1.659e-08 au
q 2.728810097650933 1.1814e-07 au
i 9.61375913544447 3.8278e-06 deg
node 129.3391421722633 2.461e-05 deg
peri 59.39893646237307 2.935e-05 deg
M 234.0912986551256 1.7863e-05 deg
tp 2459701.986278694829
(2022-May-02.48627869)		 0.00010253 TDB
period 2005.699825609543
5.49		 1.6036e-05
4.39e-08		 d
yr
n .1794884735010605 1.435e-09 deg/d
Q 3.496223058105831 1.8635e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2607  
   data-arc span      29601 days (81.04 yr)  
   first obs. used      1939-01-18  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42942  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:31:29  

Additional Information
 Earth MOID = 1.74636 au 
 Jupiter MOID = 1.53624 au 
 T_jup = 3.185 
[ 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 10.9   n/a MPO279543  
diameter diameter 18.813 km 0.371 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.683 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Brinsfield, J.W. (2011) Minor Planet Bull. 38, 154-155.]
geometric albedo albedo 0.199   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2802 Weisell (1939 BU)          Discovered 1939-Jan-19 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1939 BU = 1945 GA = 1951 KZ = 1952 OT = 1962 JO = 1969 RQ = 1975 VB6 = 1977 AL = 1978 GM2 = 1983 CZ1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 19:47 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin