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 ]  
11500 Tomaiyowit (1989 UR)
Classification: Apollo [NEO, PHA]          SPK-ID: 2011500
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 209 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3557795887714189 3.6391e-08  
a 1.079768039363419 6.9103e-10 au
q .6956086103501808 3.898e-08 au
i 10.30870902646075 3.2944e-06 deg
node 234.427737387225 1.1377e-05 deg
peri 289.4574529405982 1.2062e-05 deg
M 358.2464565468323 5.8621e-06 deg
tp 2459002.496218890094
(2020-Jun-01.99621889)
6.6743e-06 TDB
period 409.8209252447166
1.12
3.9342e-07
1.077e-09
d
yr
n .8784324514055326 8.4327e-10 deg/d
Q 1.463927468376658 9.3688e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1199  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      10889 days (29.81 yr)  
   first obs. used      1989-10-25  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42669  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-30 06:41:07  

Additional Information
 Earth MOID = .0344037 au 
 Jupiter MOID = 3.54541 au 
 T_jup = 5.657 
[ 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 18.3   n/a MPO435808  
diameter diameter 0.738 km 0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 73.0 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.142   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

11500 Tomaiyowit           Discovered 1989 Oct. 28 by J. E. Mueller and J. D. Mendenhall at Palomar.
Tomaiyowit is Earth Mother in the Luiseno creation story. She, together with Tukmit, gave birth to the First People, which are all things and features of the earth forming the basis of Luiseno existence.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17

[ show close-approach data ]
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-06 11:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin