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118142 (4117 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2118142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07710919019063525 3.4908e-08  
a 2.784208452900887 1.5029e-08 au
q 2.569520393775778 1.0235e-07 au
i 4.812313993399112 3.8985e-06 deg
node 126.3716733227304 4.8048e-05 deg
peri 313.8700014316498 5.6646e-05 deg
M 10.07505331692239 2.873e-05 deg
tp 2458953.010685497078
(2020-Apr-13.51068550)
0.0001354 TDB
period 1696.879677285342
4.65
1.374e-05
3.762e-08
d
yr
n .2121541113486172 1.7178e-09 deg/d
Q 2.998896512025996 1.6188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      15720 days (43.04 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:13:46  

Additional Information
 Earth MOID = 1.58823 au 
 Jupiter MOID = 2.1652 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457254.5 (2015-Aug-20.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07448360378436994 3.4793e-08  
q 2.576307037506217 1.0172e-07 au
tp 2457255.079613801646
(2015-Aug-20.57961380)
0.00014148 TDB
node 126.4793756879517 4.8001e-05 deg
peri 313.6244889457604 5.7297e-05 deg
i 4.814104499589018 3.9014e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      15720 days (43.04 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:13:46  

Additional Information
 Jupiter MOID = 2.1652 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.210554527672422E-15 -3.508955730469429E-15 2.145314850228709E-13 -6.904169908627878E-16 7.1320642880324E-14 -1.160406208376032E-15
q -3.508955730469429E-15 1.034644642241444E-14 -6.989445671951422E-13 1.12051610932922E-15 -2.232581519949931E-13 3.553389944115951E-15
tp 2.145314850228709E-13 -6.989445671951422E-13 2.001543165264366E-8 -5.10160094216951E-12 4.4450518718859E-9 5.52167828158815E-12
node -6.904169908627878E-16 1.12051610932922E-15 -5.10160094216951E-12 2.304079256660069E-9 -2.296873938057047E-9 2.489897523931369E-11
peri 7.1320642880324E-14 -2.232581519949931E-13 4.4450518718859E-9 -2.296873938057047E-9 3.282915283227679E-9 -2.359953009909201E-11
i -1.160406208376032E-15 3.553389944115951E-15 5.52167828158815E-12 2.489897523931369E-11 -2.359953009909201E-11 1.522103796724588E-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 15.5   n/a MPO453652  

118142 (4117 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 4117 T-3 = 2001 XH182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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