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136657 (1995 OX4)
Classification: Main-belt Asteroid          SPK-ID: 2136657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134893969932391 8.4179e-08  
a 3.08317276805376 2.3839e-08 au
q 2.733265349781363 2.6116e-07 au
i 1.231439114077049 8.7e-06 deg
node 17.32518619231226 0.00022397 deg
peri 327.7588645824808 0.00022499 deg
M 193.4770564237509 2.2931e-05 deg
tp 2459915.174975543990
(2022-Dec-01.67497554)
0.00012865 TDB
period 1977.403138115086
5.41
2.2933e-05
6.279e-08
d
yr
n .1820569579671861 2.1115e-09 deg/d
Q 3.433080186326157 2.6544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      10767 days (29.48 yr)  
   first obs. used      1990-10-26  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:40:18  

Additional Information
 Earth MOID = 1.72595 au 
 Jupiter MOID = 1.95727 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457080.5 (2015-Feb-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1118961181244645 8.4132e-08  
q 2.739012533834348 2.6052e-07 au
tp 2457938.592941034366
(2017-Jul-04.09294103)
0.00012521 TDB
node 17.3609124758838 0.00022389 deg
peri 327.9666640345534 0.00022494 deg
i 1.231818280998442 8.6978e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      10767 days (29.48 yr)  
   first obs. used      1990-10-26  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:40:18  

Additional Information
 Jupiter MOID = 1.95727 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.078198795552038E-15 -2.184593997537038E-14 5.071329892009785E-12 1.548012547433496E-14 7.701566643177824E-13 -3.059040856329782E-16
q -2.184593997537038E-14 6.78681549144277E-14 -1.532092309688164E-11 -4.838216041849512E-14 -2.358273380558077E-12 1.182182193737075E-15
tp 5.071329892009785E-12 -1.532092309688164E-11 1.567783668459825E-8 2.052688400644133E-11 2.721799064582536E-9 -8.717654060153166E-13
node 1.548012547433496E-14 -4.838216041849512E-14 2.052688400644133E-11 5.012799346607999E-8 -5.011262204952334E-8 -7.753115375338127E-10
peri 7.701566643177824E-13 -2.358273380558077E-12 2.721799064582536E-9 -5.011262204952334E-8 5.059826552342884E-8 7.74989445678359E-10
i -3.059040856329782E-16 1.182182193737075E-15 -8.717654060153166E-13 -7.753115375338127E-10 7.74989445678359E-10 7.565146654310533E-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 15.8   n/a MPO436673  

136657 (1995 OX4)          Discovered 1995-Jul-22 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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