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22123 (2000 SG172)
Classification: Main-belt Asteroid          SPK-ID: 2022123
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109881730571593 3.1998e-08  
a 2.998077423564757 1.4117e-08 au
q 2.668643487875839 9.2621e-08 au
i 11.67091409219216 3.7276e-06 deg
node 73.80596825514066 1.6551e-05 deg
peri 260.1634007999382 2.4558e-05 deg
M 60.02079034760143 1.773e-05 deg
tp 2458884.372772820591
(2020-Feb-04.87277282)
9.342e-05 TDB
period 1896.106351240925
5.19
1.3393e-05
3.667e-08
d
yr
n .1898627678581397 1.341e-09 deg/d
Q 3.327511359253675 1.5669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2613  
   data-arc span      11432 days (31.30 yr)  
   first obs. used      1989-11-21  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:10  

Additional Information
 Earth MOID = 1.68784 au 
 Jupiter MOID = 2.03806 au 
 T_jup = 3.213 
[ 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 12.28   n/a E2021B10  
diameter diameter 13.577 km 2.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 217.36 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 0.148   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

22123 (2000 SG172)          Discovered 2000-Sep-27 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 SG172 = 1989 WP5 = 1998 MC22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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