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 ]  
13340 (1998 SM123)
Classification: Main-belt Asteroid          SPK-ID: 2013340
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2401151080669283 4.1757e-08  
a 2.557995694132896 9.6552e-09 au
q 1.943782281601438 1.0876e-07 au
i 5.566687187680428 3.5516e-06 deg
node 21.68706725520734 4.6055e-05 deg
peri 253.754424318782 4.6867e-05 deg
M 180.2778881745087 8.7653e-06 deg
tp 2459746.514300922372
(2022-Jun-16.01430092)
3.6721e-05 TDB
period 1494.335591787551
4.09
8.4606e-06
2.316e-08
d
yr
n .2409097407426142 1.364e-09 deg/d
Q 3.172209106664353 1.1974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2199  
   data-arc span      10038 days (27.48 yr)  
   first obs. used      1993-04-26  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43165  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:47:00  

Additional Information
 Earth MOID = .936611 au 
 Jupiter MOID = 1.99358 au 
 T_jup = 3.389 
[ 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 14.3   n/a MPO358759  
diameter diameter 8.914 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13340 (1998 SM123)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1930-Mar-13 19:32 00:01 Jupiter 1.96470849908875 1.96470818301084 1.96470881516754 1.38707529165536 1.03040794055711 2426049.314001423 1.31716816923825 194.546482507948 123.828376920329 -15.2194044151912 1565941.82820882 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:47:07 2020-Nov-13 02:47
2048-Sep-16 08:26 < 00:01 Jupiter 1.97289800136912 1.97289769718398 1.97289830555483 1.46375815862831 1.13310624151692 2469335.851678264 0.612444708266519 115.7362448652 100.637157304626 -53.3796615261454 2061887.38526908 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:47:07 2020-Nov-13 02:47
2167-Mar-23 18:42 00:03 Jupiter 1.99062153955309 1.99062101074082 1.99062206836456 1.57698363484478 1.27900909783816 2512622.279147923 2.54948779606598 171.78572662253 93.487210536774 1.16475765620869 913916.61772585 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:47:07 2020-Nov-13 02:47
2179-Oct-06 08:07 00:03 Jupiter 1.9967891248555 1.99678840080445 1.99678984891131 1.27473743707006 0.88123265329639 2517201.838479676 2.76835908914556 303.410878815075 211.925031465032 53.805282768006 1670872.08782941 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:47:07 2020-Nov-13 02:47

Alternate Designations
 1998 SM123 = 1993 HF6 = 1997 EG58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-26 06:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin