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120927 (1998 SJ108)
Classification: Main-belt Asteroid          SPK-ID: 2120927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1519268302893094 5.3481e-08  
a 3.176687871345973 2.6393e-08 au
q 2.694063752233886 1.8004e-07 au
i 6.59056438359076 5.4397e-06 deg
node 352.5358171364647 4.0194e-05 deg
peri 9.457503859606298 4.3079e-05 deg
M 345.6095681280825 1.5643e-05 deg
tp 2459283.166884630503
(2021-Mar-09.66688463)
9.0198e-05 TDB
period 2068.046235989418
5.66
2.5773e-05
7.056e-08
d
yr
n .1740773459195726 2.1695e-09 deg/d
Q 3.65931199045806 3.0403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-09-17  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:47  

Additional Information
 Earth MOID = 1.68985 au 
 Jupiter MOID = 1.79796 au 
 T_jup = 3.172 
[ 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 14.75   n/a E2021B55  

120927 (1998 SJ108)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 SJ108 = 2004 SF48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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