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2018 Schuster (1931 UC)
Classification: Main-belt Asteroid          SPK-ID: 2002018
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921328587712664 3.8674e-08  
a 2.183083525522559 4.6832e-09 au
q 1.763641446827455 8.4301e-08 au
i 2.559603825929075 4.1149e-06 deg
node 186.0637864588246 6.3247e-05 deg
peri 157.888118364922 6.3711e-05 deg
M 194.3746322820714 7.6148e-06 deg
tp 2459542.536222547518
(2021-Nov-24.03622255)
2.5337e-05 TDB
period 1178.15913592072
3.23
3.7911e-06
1.038e-08
d
yr
n .3055614381996566 9.8325e-10 deg/d
Q 2.602525604217663 5.583e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      32336 days (88.53 yr)  
   first obs. used      1931-10-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4768  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:33:49  

Additional Information
 Earth MOID = .756359 au 
 Jupiter MOID = 2.80384 au 
 T_jup = 3.654 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456833.5 (2014-Jun-25.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927978066222015 3.8789e-08  
q 1.761999231501602 8.4618e-08 au
tp 2457185.208593153462
(2015-Jun-11.70859315)
2.417e-05 TDB
node 186.0919175569732 6.3269e-05 deg
peri 157.7307809104282 6.3725e-05 deg
i 2.558351952718079 4.1165e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      32336 days (88.53 yr)  
   first obs. used      1931-10-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4768  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:33:49  

Additional Information
 Jupiter MOID = 2.80384 au 
 T_jup = 3.654 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.504607695206812E-15 -3.279047648362927E-15 2.124324868129087E-13 -1.751908563251713E-15 3.105071534339356E-14 -1.484979894253528E-15
q -3.279047648362927E-15 7.160236901804989E-15 -4.658734962428952E-13 3.750211538184633E-15 -6.991950408428468E-14 3.256783086009332E-15
tp 2.124324868129087E-13 -4.658734962428952E-13 5.841812816845608E-10 9.060686997700712E-13 1.873414062525492E-10 -6.234698996494285E-13
node -1.751908563251713E-15 3.750211538184633E-15 9.060686997700712E-13 4.002937724342836E-9 -3.997956167847912E-9 -2.186167147940067E-11
peri 3.105071534339356E-14 -6.991950408428468E-14 1.873414062525492E-10 -3.997956167847912E-9 4.060842290602959E-9 2.167820585601844E-11
i -1.484979894253528E-15 3.256783086009332E-15 -6.234698996494285E-13 -2.186167147940067E-11 2.167820585601844E-11 1.694552285277502E-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 14.3   n/a MPO347534  
diameter diameter 4.034 km 0.392 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.249   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2018 Schuster (1931 UC)          Discovered 1931-Oct-17 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1931 UC = 1973 UC1 = 2526 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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