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 ]  
11734 (1998 KM55)
Classification: Main-belt Asteroid          SPK-ID: 2011734
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305737920534803 2.9036e-08  
a 2.648195566737482 1.0791e-08 au
q 2.302410629489353 7.5854e-08 au
i 12.50900292597601 4.6138e-06 deg
node 221.6894097291184 1.4658e-05 deg
peri 253.4442531415507 2.335e-05 deg
M 74.8329495226339 1.8008e-05 deg
tp 2458273.299566370360
(2018-Jun-03.79956637)		 7.873e-05 TDB
period 1574.068065712726
4.31		 9.6214e-06
2.634e-08		 d
yr
n .2287067553441501 1.398e-09 deg/d
Q 2.99398050398561 1.22e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2058  
   data-arc span      25833 days (70.73 yr)  
   first obs. used      1948-11-24  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41923  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:10:24  

Additional Information
 Earth MOID = 1.35503 au 
 Jupiter MOID = 2.26747 au 
 T_jup = 3.346 
[ 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 12.4   n/a MPO435810  
diameter diameter 7.705 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.326   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11734 (1998 KM55)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KM55 = 1948 WO = 1976 JF1 = 1978 TZ2 = 1991 XM2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 08:55 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin