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 ]  
20606 Widemann (1999 RM214)
Classification: Main-belt Asteroid          SPK-ID: 2020606
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128275400979434 5.2686e-08  
a 3.073572503502905 2.0766e-08 au
q 2.679308758176707 1.6649e-07 au
i 8.85376128744044 6.8467e-06 deg
node 29.53971789428063 2.998e-05 deg
peri 294.9853783447741 3.7651e-05 deg
M 267.9422556862025 2.4117e-05 deg
tp 2459103.793647388441
(2020-Sep-11.29364739)
0.00013336 TDB
period 1968.174588791036
5.39
1.9946e-05
5.461e-08
d
yr
n .1829106025706451 1.8537e-09 deg/d
Q 3.467836248829103 2.3429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1175  
   data-arc span      9898 days (27.10 yr)  
   first obs. used      1992-04-04  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51947  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:53:52  

Additional Information
 Earth MOID = 1.68242 au 
 Jupiter MOID = 1.94554 au 
 T_jup = 3.199 
[ 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 13.5   n/a MPO358827  
diameter diameter 9.153 km 0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 26.006 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.072   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20606 Widemann           Discovered 1999 Sept. 5 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Thomas Widemann (b. 1961) is a planetary scientist at Paris Observatory and an associate professor at Versailles University. He is an expert in the field of stellar occultations and groundbased spectroscopy of planetary atmospheres.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

[ show close-approach data ]
Alternate Designations
 1999 RM214 = 1992 GL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-06 18:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin