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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
5838 Hamsun (2170 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2005838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371574102847484 5.1311e-08  
a 2.549509026015875 1.1954e-08 au
q 2.199824970509947 1.2933e-07 au
i 14.36816733603625 4.5453e-06 deg
node 186.5181765605411 2.0798e-05 deg
peri 59.29049232022308 2.4963e-05 deg
M 176.4665922447763 1.5193e-05 deg
tp 2457871.641444574077
(2017-Apr-28.14144457)
6.2301e-05 TDB
period 1486.905122468581
4.07
1.0457e-05
2.863e-08
d
yr
n .2421136322419301 1.7028e-09 deg/d
Q 2.899193081521804 1.3593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1579  
   data-arc span      16844 days (46.12 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48624  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:49:33  

Additional Information
 Earth MOID = 1.22557 au 
 Jupiter MOID = 2.16651 au 
 T_jup = 3.384 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO452249  
diameter diameter 4.882 km 0.507 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.355   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5838 Hamsun (2170 T-2)          Discovered 1973-Sep-29 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 2170 T-2 = 1988 FG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-06 01:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin