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7545 Smaklosa (1978 OB)
Classification: Main-belt Asteroid          SPK-ID: 2007545
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2326896658898166 1.7244e-08  
a 2.26251849597215 5.9155e-09 au
q 1.73605382307486 3.8568e-08 au
i 6.520749155901101 1.0312e-06 deg
node 114.8635396137948 5.7499e-06 deg
peri 200.0289718848496 7.0947e-06 deg
M 162.1038424744161 4.1633e-06 deg
tp 2458640.771471442218
(2019-Jun-06.27147144)
1.35e-05 TDB
period 1243.04437948535
3.40
4.875e-06
1.335e-08
d
yr
n .2896115423884129 1.1358e-09 deg/d
Q 2.78898316886944 7.2919e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2090  
   data-arc span      15567 days (42.62 yr)  
   first obs. used      1978-07-28  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50418  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:48:37  

Additional Information
 Earth MOID = .721736 au 
 Jupiter MOID = 2.50496 au 
 T_jup = 3.574 
[ 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 14.27   n/a E2021B10  
diameter diameter 4.131 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.322 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.237   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7545 Smaklösa           Discovered 1978 July 28 by C. -I. Lagerkvist at Mount Stromlo.
Named after the music group Smaklösa, which performs mainly on the island of Gotland off the Swedish coast during the summer. Celebrating 25 years together in 1998, they made at the beginning of their career the now-famous statement that only cowards rehearse before a performance. The lyrics of their songs are very intelligently written and are even more enjoyable to those more accustomed to the lifestyle and humor of Gotland. The live performances of the group are unforgettable, and the discoverer is very thankful for those he was able to attend during the summer of 1998.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1978 OB = 1995 OP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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