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 ]  
2805 Kalle (1941 UM)
Classification: Main-belt Asteroid          SPK-ID: 2002805
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452586469634504 3.9332e-08  
a 2.695431190462883 1.1134e-08 au
q 2.303896502753162 1.0926e-07 au
i 6.881033700770914 4.0463e-06 deg
node 49.12836599027663 2.9662e-05 deg
peri 309.7515150304353 3.1911e-05 deg
M 305.4275903972307 1.3155e-05 deg
tp 2459245.525582639542
(2021-Jan-31.02558264)
5.9559e-05 TDB
period 1616.370074041203
4.43
1.0015e-05
2.742e-08
d
yr
n .2227212726723764 1.38e-09 deg/d
Q 3.086965878172604 1.2752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2340  
   data-arc span      25026 days (68.52 yr)  
   first obs. used      1952-01-30  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42831  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:56:42  

Additional Information
 Earth MOID = 1.30823 au 
 Jupiter MOID = 2.38351 au 
 T_jup = 3.344 
[ 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 12.5   n/a MPO344320  
diameter diameter 16.623 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2805 Kalle (1941 UM)          Discovered 1941-Oct-15 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1941 UM = 1974 DG1 = 1979 FO3 = 1981 XX 
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-22 09:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin