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17872 (1998 SP22)
Classification: Main-belt Asteroid          SPK-ID: 2017872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06771421561675978 4.2191e-08  
a 2.733751979571943 1.3016e-08 au
q 2.548638108584465 1.1716e-07 au
i 6.760752469118486 5.5202e-06 deg
node 1.848675408312297 3.1533e-05 deg
peri 232.9053918784874 4.786e-05 deg
M 57.91822615913666 3.5667e-05 deg
tp 2458734.886683653777
(2019-Sep-08.38668365)
0.00016383 TDB
period 1650.962058504896
4.52
1.179e-05
3.228e-08
d
yr
n .2180546779651704 1.5573e-09 deg/d
Q 2.918865850559422 1.3897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1899  
   data-arc span      11903 days (32.59 yr)  
   first obs. used      1987-02-25  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48565  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:10:36  

Additional Information
 Earth MOID = 1.54494 au 
 Jupiter MOID = 2.08454 au 
 T_jup = 3.340 
[ 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 13.0   n/a MPO492946  
diameter diameter 6.670 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.302   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17872 (1998 SP22)          Discovered 1998-Sep-23 by Visnjan at Visnjan
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SP22 = 1987 DB1 = 1999 XY196 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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