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101184 (1998 SP12)
Classification: Main-belt Asteroid          SPK-ID: 2101184
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941409638610078 4.1769e-08  
a 2.31284932116316 1.0509e-08 au
q 1.863830524687267 1.0012e-07 au
i 24.79996817960129 6.8547e-06 deg
node 289.4550010996914 1.3829e-05 deg
peri 120.4544529645406 6.2974e-05 deg
M 28.58524651629031 4.8085e-05 deg
tp 2458898.486211100379
(2020-Feb-18.98621110)
0.00017162 TDB
period 1284.752397812436
3.52
8.7564e-06
2.397e-08
d
yr
n .2802096346447585 1.9098e-09 deg/d
Q 2.761868117639054 1.2549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1994-07-11  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:58  

Additional Information
 Earth MOID = .964239 au 
 Jupiter MOID = 2.66656 au 
 T_jup = 3.437 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457550.5 (2016-Jun-11.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941596270106865 4.1914e-08  
q 1.863972876963404 1.0045e-07 au
tp 2457612.264210447551
(2016-Aug-11.76421045)
0.00017178 TDB
node 289.5384286172963 1.3839e-05 deg
peri 120.0523754564567 6.2983e-05 deg
i 24.77960017744035 6.8516e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1994-07-11  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:58  

Additional Information
 Jupiter MOID = 2.66656 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.756799484774343E-15 -4.197682432524874E-15 -7.667981483775993E-13 6.718964197945317E-15 -2.572906697332454E-13 -2.253792250256426E-14
q -4.197682432524874E-15 1.009102500645156E-14 1.784246813205943E-12 -1.474406391697903E-14 5.941387998126553E-13 5.569436482786408E-14
tp -7.667981483775993E-13 1.784246813205943E-12 2.950727784006882E-8 -1.013754605367313E-10 1.057841030362173E-8 3.637964490251229E-10
node 6.718964197945317E-15 -1.474406391697903E-14 -1.013754605367313E-10 1.915271122423135E-10 -2.093511053244099E-10 2.749521005454564E-11
peri -2.572906697332454E-13 5.941387998126553E-13 1.057841030362173E-8 -2.093511053244099E-10 3.966846610134011E-9 1.028743140482103E-10
i -2.253792250256426E-14 5.569436482786408E-14 3.637964490251229E-10 2.749521005454564E-11 1.028743140482103E-10 4.694502805163344E-11

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 14.9   n/a MPO395892  
diameter diameter 6.313 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101184 (1998 SP12)          Discovered 1998-Sep-21 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SP12 = 1994 NW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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