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 ]  
120958 (1998 UA43)
Classification: Main-belt Asteroid          SPK-ID: 2120958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861365168033869 5.1872e-08  
a 3.141182448654597 2.0236e-08 au
q 2.556493689018096 1.5942e-07 au
i 15.32406157662872 6.3318e-06 deg
node 28.14887894597574 1.4542e-05 deg
peri 305.4273855168699 1.9883e-05 deg
M 37.45788605812848 1.2227e-05 deg
tp 2458988.917894972727
(2020-May-19.41789497)
6.8915e-05 TDB
period 2033.471875364656
5.57
1.9649e-05
5.38e-08
d
yr
n .1770371178285622 1.7107e-09 deg/d
Q 3.725871208291097 2.4002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      796  
   data-arc span      8110 days (22.20 yr)  
   first obs. used      1998-10-13  
   last obs. used      2020-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:18  

Additional Information
 Earth MOID = 1.5814 au 
 Jupiter MOID = 1.86463 au 
 T_jup = 3.129 
[ 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 14.4   n/a MPO436584  
diameter diameter 8.842 km 0.427 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120958 (1998 UA43)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-08 12:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin