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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03679734032533986 5.2123e-08  
a 3.184547183401927 2.0048e-08 au
q 3.067364316912184 1.6768e-07 au
i 22.3687873089316 5.7819e-06 deg
node 24.24099060474209 9.315e-06 deg
peri 354.2074412889197 5.4728e-05 deg
M 33.87526107770323 5.2101e-05 deg
tp 2458805.178473839986
0.00030092 TDB
period 2075.725682418043
n .173433321680845 1.6377e-09 deg/d
Q 3.30173004989167 2.0785e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2073  
   data-arc span      14579 days (39.92 yr)  
   first obs. used      1980-11-30  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42761  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:28:52  

Additional Information
 Earth MOID = 2.07094 au 
 Jupiter MOID = 1.88935 au 
 T_jup = 3.080 
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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 11.8   n/a MPO502222  
diameter diameter 22.407 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 16.3 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site,]
geometric albedo albedo 0.089   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

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Alternate Designations
 1985 TV = 1980 WK = 1991 VF13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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