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101328 (1998 SJ162)
Classification: Mars-crossing Asteroid          SPK-ID: 2101328
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3186080672999219 3.8641e-08  
a 2.373067570300931 5.0191e-09 au
q 1.61698909815523 9.1284e-08 au
i 4.871236327253621 4.6616e-06 deg
node 206.9268408001342 4.0115e-05 deg
peri 190.7333928591873 4.0579e-05 deg
M 324.8283743093482 4.8578e-06 deg
tp 2459130.952836109576
(2020-Oct-08.45283611)
1.8119e-05 TDB
period 1335.253064857035
3.66
4.2362e-06
1.16e-08
d
yr
n .269611813277167 8.5536e-10 deg/d
Q 3.129146042446632 6.6183e-09 au
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      10521 days (28.80 yr)  
   first obs. used      1992-01-27  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49999  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:05  

Additional Information
 Earth MOID = .624646 au 
 Jupiter MOID = 2.30133 au 
 T_jup = 3.468 
[ 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 16.4   n/a MPO436473  

101328 (1998 SJ162)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1926-Jun-11 09:35 00:01 Iris 0.0206681050485704 0.020662872536643 0.020673340142574 2.33755518121843 2.33755506222841 2424677.899125172 1.25634714845022 452.331407557512 47.2639654798277 55.2861273285546 53827.6976461618 T 15 CATAB v2.0f-lin.ifort 2020-Dec-17 22:29:07 2020-Dec-17 22:29
2089-Jul-30 00:24 < 00:01 Hebe 0.0195284670200882 0.019518247208457 0.0195386868918444 5.34933071016105 5.34933065065105 2484262.516404258 0.573506042208261 512.318612245264 51.5688601481506 6.1092847519178 8272.14400984743 T 15 CATAB v2.0f-lin.ifort 2020-Dec-17 22:29:07 2020-Dec-17 22:29

Alternate Designations
 1998 SJ162 = 1987 SD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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