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JPL Small-Body Database Browser
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14915 (1993 UM8)
Classification: Main-belt Asteroid          SPK-ID: 2014915
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034870327271212 3.8752e-08  
a 2.591562476529129 1.2268e-08 au
q 2.32336936570618 9.734e-08 au
i 14.83692431718899 5.789e-06 deg
node 185.3188584153954 1.3152e-05 deg
peri 259.5023398941025 3.4e-05 deg
M 92.58330759538195 2.8331e-05 deg
tp 2458608.603718271204
(2019-May-05.10371827)
0.00012064 TDB
period 1523.845551499866
4.17
1.082e-05
2.962e-08
d
yr
n .2362444144327258 1.6775e-09 deg/d
Q 2.859755587352078 1.3538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      17283 days (47.32 yr)  
   first obs. used      1972-10-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5278  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:07:10  

Additional Information
 Earth MOID = 1.39055 au 
 Jupiter MOID = 2.40145 au 
 T_jup = 3.365 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456716.5 (2014-Feb-28.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1023737736637702 3.8277e-08  
q 2.326824229336357 9.5899e-08 au
tp 2457086.540655049887
(2015-Mar-05.04065505)
0.0001259 TDB
node 185.3502261006625 1.3161e-05 deg
peri 260.0654458954609 3.4374e-05 deg
i 14.82834798624022 5.7856e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      17283 days (47.32 yr)  
   first obs. used      1972-10-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5278  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:07:10  

Additional Information
 Jupiter MOID = 2.40145 au 
 T_jup = 3.365 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.465094831285525E-15 -3.648904840791843E-15 -2.894158373342629E-12 8.394327905841751E-15 -7.517825503443792E-13 2.649478712236683E-17
q -3.648904840791843E-15 9.196587984361328E-15 6.977897722054619E-12 -2.125481222194094E-14 1.809478546509092E-12 1.493841451764306E-17
tp -2.894158373342629E-12 6.977897722054619E-12 1.585192607337089E-8 -3.215784917209683E-11 4.004925286165985E-9 -1.91773186224532E-12
node 8.394327905841751E-15 -2.125481222194094E-14 -3.215784917209683E-11 1.732122550643567E-10 -1.75109855876844E-10 2.428552570638294E-11
peri -7.517825503443792E-13 1.809478546509092E-12 4.004925286165985E-9 -1.75109855876844E-10 1.181580330321572E-9 -2.394105669664107E-11
i 2.649478712236683E-17 1.493841451764306E-17 -1.91773186224532E-12 2.428552570638294E-11 -2.394105669664107E-11 3.347333448574934E-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 14.0   n/a MPO452381  

14915 (1993 UM8)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 UM8 = 1972 TF9 = 1991 FW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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