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22121 (2000 SM107)
Classification: Main-belt Asteroid          SPK-ID: 2022121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638077996135612 4.3546e-08  
a 2.186224299927748 5.9767e-09 au
q 1.828103707894885 9.4787e-08 au
i 1.479552755322045 4.5148e-06 deg
node 324.1708037309605 0.00011259 deg
peri 4.841910502480483 0.00011293 deg
M 123.3258296721784 9.4499e-06 deg
tp 2458796.024660943748
(2019-Nov-08.52466094)
3.0456e-05 TDB
period 1180.702553936271
3.23
4.8417e-06
1.326e-08
d
yr
n .3049032110583806 1.2503e-09 deg/d
Q 2.54434489196061 6.9558e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1973  
   data-arc span      23871 days (65.36 yr)  
   first obs. used      1955-10-25  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:03  

Additional Information
 Earth MOID = .814947 au 
 Jupiter MOID = 2.78171 au 
 T_jup = 3.659 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO384943  
rotation period rot_per 537.544 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

22121 (2000 SM107)          Discovered 2000-Sep-24 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 SM107 = 1997 WL47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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