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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2400276497624025 4.0941e-08  
a 2.558083273829193 9.3177e-09 au
q 1.944072557715459 1.071e-07 au
i 5.566653698031627 3.3436e-06 deg
node 21.67626063314015 4.5922e-05 deg
peri 253.790099985755 4.6629e-05 deg
M 228.4159992242961 8.7344e-06 deg
tp 2459746.724316681192
(2022-Jun-16.22431668)
3.662e-05 TDB
period 1494.412336195949
4.09
8.165e-06
2.235e-08
d
yr
n .2408973690061913 1.3162e-09 deg/d
Q 3.172093989942927 1.1554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2370  
   data-arc span      10184 days (27.88 yr)  
   first obs. used      1993-04-26  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:53:12  

Additional Information
 Earth MOID = .935094 au 
 Jupiter MOID = 1.99296 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 14.33   n/a E2021B10  
diameter diameter 8.914 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.65818 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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 1.96470848401145 1.96470818981527 1.96470877820853 1.38707555729185 1.03040829724205 2426049.313962500 1.27237890503462 192.86344512018 118.585803493459 -14.8630528097401 1590341.84698094 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:53:28 2021-Apr-12 23:53
2048-Sep-16 08:26 < 00:01 Jupiter 1.97289799377851 1.97289771777651 1.9728982697813 1.46375856803922 1.1331067710334 2469335.851647326 0.57661614837526 114.224371053171 89.0971561634537 -61.4932958534012 2335994.42760036 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:53:28 2021-Apr-12 23:53
2167-Mar-23 18:43 00:02 Jupiter 1.99062145678507 1.990620986616 1.99062192695336 1.57698305438452 1.27900837015144 2512622.279556116 2.43454552521781 157.418555286423 90.5518845787173 -3.26466719959798 1002134.54011218 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:53:28 2021-Apr-12 23:53
2179-Oct-06 08:08 00:03 Jupiter 1.99678922564798 1.9967885099582 1.99678994134208 1.2747377015064 0.881233062770892 2517201.838934406 2.64535012665945 300.997193252957 198.243946366781 50.4873728154455 1724725.39529816 T 32 CATAB v2.0f-lin.ifort 2021-Apr-12 23:53:28 2021-Apr-12 23:53

Alternate Designations
 1998 SM123 = 1993 HF6 = 1997 EG58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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