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101367 (1998 UB1)
Classification: Main-belt Asteroid          SPK-ID: 2101367
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .221115363871992 6.4498e-08  
a 2.84498583318043 1.5513e-08 au
q 2.215915755466077 1.8555e-07 au
i .5042656841473094 6.159e-06 deg
node 202.0332813599879 0.00057188 deg
peri 151.51371253 0.00057198 deg
M 287.9930563888886 1.003e-05 deg
tp 2459747.082687286399
(2022-Jun-16.58268729)
5.019e-05 TDB
period 1752.744403438729
4.80
1.4336e-05
3.925e-08
d
yr
n .2053921834203047 1.6799e-09 deg/d
Q 3.474055910894783 1.8943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      10117 days (27.70 yr)  
   first obs. used      1993-09-18  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:01:17  

Additional Information
 Earth MOID = 1.21005 au 
 Jupiter MOID = 1.97103 au 
 T_jup = 3.271 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457377.5 (2015-Dec-21.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196435231500914 6.4372e-08  
q 2.221352135909977 1.8467e-07 au
tp 2457994.335789278519
(2017-Aug-28.83578928)
4.5576e-05 TDB
node 202.0192396877202 0.00057231 deg
peri 151.63865245098 0.00057241 deg
i .5035981104799215 6.1579e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      10117 days (27.70 yr)  
   first obs. used      1993-09-18  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:01:17  

Additional Information
 Jupiter MOID = 1.97103 au 
 T_jup = 3.271 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.143798601699236E-15 -1.186221173288913E-14 -7.112023684870362E-13 -4.021193052096916E-14 -2.183129230065363E-13 -3.971807828556919E-16
q -1.186221173288913E-14 3.410343925577261E-14 2.133594178086979E-12 1.145537060050029E-13 6.307165021281732E-13 1.383287166062014E-15
tp -7.112023684870362E-13 2.133594178086979E-12 2.077141823964739E-9 1.571847516269436E-11 5.133221402053277E-10 -7.01543222030862E-14
node -4.021193052096916E-14 1.145537060050029E-13 1.571847516269436E-11 3.275385651498829E-7 -3.275198621358636E-7 -1.528057101264193E-9
peri -2.183129230065363E-13 6.307165021281732E-13 5.133221402053277E-10 -3.275198621358636E-7 3.276529735091537E-7 1.527990647863828E-9
i -3.971807828556919E-16 1.383287166062014E-15 -7.01543222030862E-14 -1.528057101264193E-9 1.527990647863828E-9 3.792005151869062E-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 16.07   n/a E2021B55  
diameter diameter 4.849 km 0.998 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101367 (1998 UB1)          Discovered 1998-Oct-16 by Pravec, P. at Ondrejov
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1998 UB1 = 1993 SW10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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