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173109 (7635 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2173109
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859895198892725 5.3443e-08  
a 2.230109668089168 1.0276e-08 au
q 1.815332641620839 1.1754e-07 au
i 5.117472800292558 4.9416e-06 deg
node 35.90720300640577 5.453e-05 deg
peri 21.82181452698805 5.6214e-05 deg
M 293.4895004600093 1.5404e-05 deg
tp 2459225.237459170480
(2021-Jan-10.73745917)
5.2923e-05 TDB
period 1216.431779357285
3.33
8.4077e-06
2.302e-08
d
yr
n .2959475460187416 2.0455e-09 deg/d
Q 2.644886694557497 1.2187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      21835 days (59.78 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56125  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 13:03:29  

Additional Information
 Earth MOID = .828356 au 
 Jupiter MOID = 2.70268 au 
 T_jup = 3.615 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457462.5 (2016-Mar-15.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871465651555678 5.3648e-08  
q 1.812290455961808 1.1826e-07 au
tp 2458007.487429698698
(2017-Sep-10.98742970)
4.8084e-05 TDB
node 35.98378494134113 5.4421e-05 deg
peri 21.49607630799175 5.6082e-05 deg
i 5.124003533836825 4.9469e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      21835 days (59.78 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56125  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 13:03:29  

Additional Information
 Jupiter MOID = 2.70268 au 
 T_jup = 3.615 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.878095811785311E-15 -6.329417837160747E-15 4.449087052022158E-13 -1.355980219891485E-14 -6.163469466012117E-15 -3.428893783303299E-15
q -6.329417837160747E-15 1.398473402469057E-14 -8.097842322343505E-13 2.942255513211896E-14 5.217160790599944E-14 7.30306058035974E-15
tp 4.449087052022158E-13 -8.097842322343505E-13 2.312058688241273E-9 -1.277032527402232E-11 6.594643552609885E-10 -6.473895118353715E-12
node -1.355980219891485E-14 2.942255513211896E-14 -1.277032527402232E-11 2.961627175823133E-9 -2.951742543102764E-9 3.293659046242923E-11
peri -6.163469466012117E-15 5.217160790599944E-14 6.594643552609885E-10 -2.951742543102764E-9 3.145169017976328E-9 -3.448768456291875E-11
i -3.428893783303299E-15 7.30306058035974E-15 -6.473895118353715E-12 3.293659046242923E-11 -3.448768456291875E-11 2.447161066885542E-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 16.8   n/a MPO433111  

173109 (7635 P-L)          Discovered 1960-Oct-17 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 7635 P-L = 2000 SB185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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