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100279 (1994 YL4)
Classification: Main-belt Asteroid          SPK-ID: 2100279
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300294237420044 3.8566e-08  
a 2.375733701663068 1.1722e-08 au
q 2.066818417471361 9.3366e-08 au
i .7663636699083066 4.6383e-06 deg
node 326.2770593572375 0.00043032 deg
peri 169.3097536700567 0.00043113 deg
M 317.5034555539385 2.8559e-05 deg
tp 2459158.386930367465
(2020-Nov-04.88693037)
0.00010686 TDB
period 1337.503923511484
3.66
9.8991e-06
2.71e-08
d
yr
n .2691580889384277 1.9921e-09 deg/d
Q 2.684648985854776 1.3246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      9087 days (24.88 yr)  
   first obs. used      1994-12-31  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60457  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:35:11  

Additional Information
 Earth MOID = 1.08071 au 
 Jupiter MOID = 2.34097 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456448.5 (2013-Jun-05.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1294654841891936 3.8618e-08  
q 2.068241122833165 9.3432e-08 au
tp 2456483.250768667166
(2013-Jul-09.75076867)
9.5756e-05 TDB
node 326.4525338304678 0.00042981 deg
peri 169.1327046503785 0.00043063 deg
i .7668894440252547 4.642e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      9087 days (24.88 yr)  
   first obs. used      1994-12-31  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60457  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:35:11  

Additional Information
 Jupiter MOID = 2.34097 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.49134141689521E-15 -3.586503109844862E-15 2.144093882424154E-13 -2.006741333278264E-14 9.085113017472766E-14 -6.962873576600811E-17
q -3.586503109844862E-15 8.729572095264906E-15 5.689913688573778E-15 4.709758918246699E-14 -7.629589359876595E-14 1.833379810215437E-16
tp 2.144093882424154E-13 5.689913688573778E-15 9.169189307706342E-9 -2.618259227911457E-11 2.58052412140849E-9 -3.407798451661341E-14
node -2.006741333278264E-14 4.709758918246699E-14 -2.618259227911457E-11 1.84740438860962E-7 -1.847304981411656E-7 4.82215059787246E-10
peri 9.085113017472766E-14 -7.629589359876595E-14 2.58052412140849E-9 -1.847304981411656E-7 1.854451336227909E-7 -4.821829640053396E-10
i -6.962873576600811E-17 1.833379810215437E-16 -3.407798451661341E-14 4.82215059787246E-10 -4.821829640053396E-10 2.154796788330391E-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 17.1   n/a MPO493563  

100279 (1994 YL4)          Discovered 1994-Dec-31 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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