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190850 (2001 SL161)
Classification: Main-belt Asteroid          SPK-ID: 2190850
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637594984454009 3.3309e-08  
a 2.361059464016946 1.0781e-08 au
q 1.974413550389764 7.5838e-08 au
i 4.07139576006965 5.399e-06 deg
node 226.6373387962356 6.5265e-05 deg
peri 231.8837787931467 6.7979e-05 deg
M 40.44505837899448 1.9319e-05 deg
tp 2459051.624998005363
(2020-Jul-21.12499801)
7.0829e-05 TDB
period 1325.131001563944
3.63
9.0762e-06
2.485e-08
d
yr
n .2716712533139148 1.8608e-09 deg/d
Q 2.747705377644128 1.2547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      2001-09-17  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:27  

Additional Information
 Earth MOID = .994056 au 
 Jupiter MOID = 2.42317 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457821.5 (2017-Mar-09.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162235909944241 3.3201e-08  
q 1.978116303905866 7.5442e-08 au
tp 2457725.994960959003
(2016-Dec-03.49496096)
7.0019e-05 TDB
node 226.654959031351 6.5275e-05 deg
peri 231.8171424166816 6.8058e-05 deg
i 4.069554964093999 5.4022e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      2001-09-17  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:27  

Additional Information
 Jupiter MOID = 2.42317 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.102325095625227E-15 -2.489211227638111E-15 2.986094382669802E-14 3.463631551664043E-15 -2.013536665175134E-15 -3.433172991134225E-16
q -2.489211227638111E-15 5.691542333467297E-15 1.754864203350152E-14 -8.321985001849488E-15 2.821722769186245E-14 7.931263091530338E-16
tp 2.986094382669802E-14 1.754864203350152E-14 4.902646795562169E-9 6.376812689133118E-12 1.370156332153368E-9 -2.320378131650968E-12
node 3.463631551664043E-15 -8.321985001849488E-15 6.376812689133118E-12 4.260858668457866E-9 -4.248127529111662E-9 -1.68239867360217E-10
peri -2.013536665175134E-15 2.821722769186245E-14 1.370156332153368E-9 -4.248127529111662E-9 4.631952219737203E-9 1.671693162239095E-10
i -3.433172991134225E-16 7.931263091530338E-16 -2.320378131650968E-12 -1.68239867360217E-10 1.671693162239095E-10 2.918400104176982E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.73   n/a MPCxxxxx  
diameter diameter 2.148 km 0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190850 (2001 SL161)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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