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7331 Balindblad (1985 TV)
Classification: Main-belt Asteroid          SPK-ID: 2007331
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03566716126996351 1.1096e-07  
a 3.184016494068758 4.4656e-08 AU
q 3.070451664288584 3.5761e-07 AU
i 22.35050856223977 1.2846e-05 deg
node 24.32637728832873 2.0841e-05 deg
peri 347.100420319816 0.00011004 deg
M 54.34005404010308 0.0001069 deg
tp 2456687.258744974303
(2014-Jan-29.75874497)
0.00061683 JED
period 2075.206839618316
5.68
4.3657e-05
1.195e-07
d
yr
n .1734766834453058 3.6495e-09 deg/d
Q 3.297581323848932 4.6248e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      12301 days (33.68 yr)  
   first obs. used      1980-11-30  
   last obs. used      2014-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50045  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:10:15  

Additional Information
 Earth MOID = 2.07471 AU 
 T_jup = 3.080 
[ 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 11.7 mag n/a MPO302110  
diameter diameter 24.49 km 2.3 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 16.3 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0740   0.016 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

7331 Balindblad           Discovered 1985 Oct. 15 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Named in honor of Bertil A. Lindblad (b. 1921) of the Lund Observatory, in recognition of his lifetime work on meteor orbits; his long-term effort in establishing a database for all meteor orbits, now generally used by all meteor workers; his stewardship of IAU Commission 22, which he served as president in the early 1970s; and, in particular, his contribution to starting the very successful "Asteroids, Comets, Meteors" series of conferences. Name suggested and citation written by I. P. Williams.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1985 TV = 1980 WK = 1991 VF13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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