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1699 Honkasalo (1941 QD)
Classification: Main-belt Asteroid          SPK-ID: 2001699
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1657169104835134 3.1959e-08  
a 2.211474293365544 4.4109e-09 au
q 1.844995605855295 6.9733e-08 au
i 1.971568071167918 2.9265e-06 deg
node 273.5325227954111 0.00010854 deg
peri 51.52713891618471 0.00010902 deg
M 356.5600900394832 1.0989e-05 deg
tp 2459011.977990059588
(2020-Jun-11.47799006)
3.6675e-05 TDB
period 1201.216447197656
3.29
3.5939e-06
9.84e-09
d
yr
n .2996961961683525 8.9665e-10 deg/d
Q 2.577952980875793 5.1419e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3244  
   data-arc span      32601 days (89.26 yr)  
   first obs. used      1931-08-13  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38804  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:02:13  

Additional Information
 Earth MOID = .833731 au 
 Jupiter MOID = 2.73336 au 
 T_jup = 3.638 
[ 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 12.4   n/a MPO473787  
diameter diameter 8.345 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.1159 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Brinsfield, J.W. (2011) Minor Planet Bull. 38, 73-74.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.277   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1699 Honkasalo           Discovered 1941 Aug. 26 by Y. Vaisala at Turku.
Named in memory of Tauno Bruno Honkasalo (1912-1975), a disciple of Y. Vaisala who measured geodesic standard base lines in various countries with the Vaisala interference comparator.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5281Last Updated: 2007-10-23

[ show close-approach data ]
Alternate Designations
 1941 QD = 1931 PE = 1934 KC = 1944 MB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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