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13330 Dondavis (1998 SM46)
Classification: Main-belt Asteroid          SPK-ID: 2013330
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720987575380958 5.9194e-08  
a 3.108912665075426 2.4258e-08 AU
q 2.573872658121495 1.8544e-07 AU
i .2633645302771687 5.5866e-06 deg
node 299.1958153417785 0.0013292 deg
peri 24.12303221144851 0.001329 deg
M 30.75467698798559 1.5391e-05 deg
tp 2456829.451260027582
(2014-Jun-20.95126003)
8.5643e-05 JED
period 2002.217302237506
5.48
2.3434e-05
6.416e-08
d
yr
n .1798006637929334 2.1044e-09 deg/d
Q 3.643952672029358 2.8433e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1234  
   data-arc span      13885 days (38.02 yr)  
   first obs. used      1976-09-24  
   last obs. used      2014-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50535  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:24:56  

Additional Information
 Earth MOID = 1.56235 AU 
 T_jup = 3.197 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO263468  

13330 Dondavis           Discovered 1998 Sept. 25 by Spacewatch at Kitt Peak.
Don Davis (b. 1952) is an astronomical artist who got his start working on some of the first modern lunar maps with the United States Geological Survey. His attention to detail is recognized by his fellow artists. He has also contributed to books and films, including the PBS series Cosmos.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 SM46 = 1976 SU4 = 1990 EV7 = 1992 PK4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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