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JPL Small-Body Database Browser
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201144 (2002 JB118)
Classification: Inner Main-belt Asteroid          SPK-ID: 2201144
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09554445267607496 5.3995e-08  
a 1.855328729288777 9.4359e-09 au
q 1.678062361314683 9.9671e-08 au
i 20.39495054376977 6.3411e-06 deg
node 71.80649133392643 2.183e-05 deg
peri 50.53581093480041 4.9074e-05 deg
M 136.6074416991305 4.3557e-05 deg
tp 2458650.231091793832
(2019-Jun-15.73109179)
0.00011121 TDB
period 923.0595741038837
2.53
7.0418e-06
1.928e-08
d
yr
n .3900073300788759 2.9753e-09 deg/d
Q 2.032595097262871 1.0337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      7350 days (20.12 yr)  
   first obs. used      1998-12-11  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:33:26  

Additional Information
 Earth MOID = .731238 au 
 Jupiter MOID = 3.17339 au 
 T_jup = 3.919 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456931.5 (2014-Oct-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09572627780100856 5.3968e-08  
q 1.677411128221355 9.9736e-08 au
tp 2456804.376644470747
(2014-May-26.87664447)
0.00010976 TDB
node 71.827257390112 2.1835e-05 deg
peri 50.43515975561837 4.9018e-05 deg
i 20.39446101144251 6.3409e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      7350 days (20.12 yr)  
   first obs. used      1998-12-11  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:33:26  

Additional Information
 Jupiter MOID = 3.17339 au 
 T_jup = 3.919 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.9125445739345E-15 -5.362992221392935E-15 2.40085919038053E-12 -3.111294989216331E-15 9.062330824015735E-13 -5.022052003756635E-14
q -5.362992221392935E-15 9.947196096544617E-15 -4.428602031680957E-12 2.497163297851547E-15 -1.671814278403173E-12 9.431613286885421E-14
tp 2.40085919038053E-12 -4.428602031680957E-12 1.204677365416115E-8 3.917025696509745E-11 4.861381906276672E-9 -1.152921768000055E-10
node -3.111294989216331E-15 2.497163297851547E-15 3.917025696509745E-11 4.767658106469069E-10 -4.312025052030562E-10 -5.581651433466655E-11
peri 9.062330824015735E-13 -1.671814278403173E-12 4.861381906276672E-9 -4.312025052030562E-10 2.402715700956213E-9 5.448537428077006E-12
i -5.022052003756635E-14 9.431613286885421E-14 -1.152921768000055E-10 -5.581651433466655E-11 5.448537428077006E-12 4.020735847191804E-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 17.3   n/a MPO470148  

201144 (2002 JB118)          Discovered 2002-May-04 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

Alternate Designations
 2002 JB118 = 2003 WB172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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