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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06674524554527615 4.2253e-08  
a 2.731774937653132 1.2679e-08 au
q 2.549441948665042 1.1681e-07 au
i 6.761867352858728 5.5218e-06 deg
node 1.931385156184123 3.1532e-05 deg
peri 233.1612361500201 4.8235e-05 deg
M 330.3838283711091 3.6254e-05 deg
tp 2458736.172622176210
(2019-Sep-09.67262218)		 0.00016592 TDB
period 1649.171425512321
4.52		 1.1481e-05
3.143e-08		 d
yr
n .2182914367972175 1.5197e-09 deg/d
Q 2.914107926641222 1.3525e-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 = 1.5457 au 
 Jupiter MOID = 2.09022 au 
 T_jup = 3.341 
[ 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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