Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1657169058548218 3.2359e-08  
a 2.211474296207527 5.5542e-09 au
q 1.844995618462546 7.1121e-08 au
i 1.971566115093367 3.4378e-06 deg
node 273.5325181722006 0.00010945 deg
peri 51.52714879809041 0.00011011 deg
M 356.5600820199215 1.4617e-05 deg
tp 2459011.978016840685
(2020-Jun-11.47801684)
4.8795e-05 TDB
period 1201.216449513194
3.29
4.5254e-06
1.239e-08
d
yr
n .2996961955906396 1.1291e-09 deg/d
Q 2.577952973952508 6.4747e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2899  
   data-arc span      32499 days (88.98 yr)  
   first obs. used      1931-08-13  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:39:36  

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. 2019-August); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-29 08:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin