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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .192279500223026 3.8647e-08  
a 2.182822545195067 4.6614e-09 au
q 1.763110517129406 8.425e-08 au
i 2.559858769186632 4.1129e-06 deg
node 186.0638081291959 6.3037e-05 deg
peri 157.9026318135889 6.3497e-05 deg
M 255.4835759918545 7.6357e-06 deg
tp 2459542.485832050853
(2021-Nov-23.98583205)
2.5265e-05 TDB
period 1177.947874763799
3.23
3.7732e-06
1.033e-08
d
yr
n .3056162396593201 9.7896e-10 deg/d
Q 2.602534573260728 5.5577e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2255  
   data-arc span      32601 days (89.26 yr)  
   first obs. used      1931-10-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 18:22:36  

Additional Information
 Earth MOID = .754014 au 
 Jupiter MOID = 2.80425 au 
 T_jup = 3.654 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927941244872654 3.8755e-08  
q 1.762026776219371 8.4549e-08 au
tp 2457185.202858438393
(2015-Jun-11.70285844)
2.4102e-05 TDB
node 186.0917915182045 6.3065e-05 deg
peri 157.7276261621018 6.3518e-05 deg
i 2.558343992053895 4.1141e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2255  
   data-arc span      32601 days (89.26 yr)  
   first obs. used      1931-10-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 18:22:36  

Additional Information
 Jupiter MOID = 2.80425 au 
 T_jup = 3.654 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.501929638684253E-15 -3.273447037700619E-15 2.129186506005246E-13 -1.862617203043703E-15 3.153607386676804E-14 -1.483846738395081E-15
q -3.273447037700619E-15 7.148514433123055E-15 -4.666355524658079E-13 3.994042302257922E-15 -7.084013068123484E-14 3.253721417196667E-15
tp 2.129186506005246E-13 -4.666355524658079E-13 5.808823508742271E-10 9.025612524094809E-13 1.859080239194983E-10 -6.206932459232866E-13
node -1.862617203043703E-15 3.994042302257922E-15 9.025612524094809E-13 3.977217420961271E-9 -3.972263499735377E-9 -2.219679293649242E-11
peri 3.153607386676804E-14 -7.084013068123484E-14 1.859080239194983E-10 -3.972263499735377E-9 4.034541926845925E-9 2.201407399533035E-11
i -1.483846738395081E-15 3.253721417196667E-15 -6.206932459232866E-13 -2.219679293649242E-11 2.201407399533035E-11 1.692589572698194E-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 14.33   n/a E2021B10  
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

[ show close-approach data ]
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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