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 ]  
4266 Waltari (1940 YE)
Classification: Main-belt Asteroid          SPK-ID: 2004266
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768235969702336 1.3789e-08  
a 3.172479437554413 1.3538e-08 au
q 2.611510212091938 4.5107e-08 au
i 16.49115536377598 5.368e-07 deg
node 322.4868260567077 2.4142e-06 deg
peri 156.2878834767341 9.1185e-06 deg
M 5.140202180370144 6.8096e-06 deg
tp 2459171.030392510723
(2020-Nov-17.53039251)
3.8947e-05 TDB
period 2063.938017195993
5.65
1.3211e-05
3.617e-08
d
yr
n .1744238426738637 1.1165e-09 deg/d
Q 3.733448663016888 1.5931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2477  
   data-arc span      29305 days (80.23 yr)  
   first obs. used      1940-12-28  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:30:46  

Additional Information
 Earth MOID = 1.63494 au 
 Jupiter MOID = 1.36269 au 
 T_jup = 3.114 
[ 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 12.06   n/a MPCxxxxx  
diameter diameter 22.638 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.200 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[LeCrone, C.; Duncan, A.; Ditteon, R. (2004) Minor Planet Bull. 31, 78-80.]
geometric albedo albedo 0.063   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4266 Waltari (1940 YE)          Discovered 1940-Dec-28 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1940 YE = 1957 YA = 1978 NR7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-13 15:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin