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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3186202905496208 3.6958e-08  
a 2.373038460237711 4.6962e-09 au
q 1.616940256551347 8.6994e-08 au
i 4.871250954962083 3.9863e-06 deg
node 206.925370822576 3.8277e-05 deg
peri 190.7548937217562 3.8712e-05 deg
M 18.74141965491609 4.555e-06 deg
tp 2459130.988673397110
(2020-Oct-08.48867340)		 1.6863e-05 TDB
period 1335.228495909388
3.66		 3.9636e-06
1.085e-08		 d
yr
n .2696167742846244 8.0034e-10 deg/d
Q 3.129136663924075 6.1925e-09 au
   Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      10584 days (28.98 yr)  
   first obs. used      1992-01-27  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47421  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:28:06  

Additional Information
 Earth MOID = .623547 au 
 Jupiter MOID = 2.30241 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 16.57   n/a E2021B55  

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

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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 17 CATAB v2.0f-lin.ifort 2021-Feb-24 08:28:07 2021-Feb-24 08:28
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 17 CATAB v2.0f-lin.ifort 2021-Feb-24 08:28:07 2021-Feb-24 08:28

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