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181355 (2006 RY42)
Classification: Main-belt Asteroid          SPK-ID: 2181355
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05341196946765966 4.1074e-08  
a 2.401738246248385 1.4217e-08 au
q 2.273456676370456 9.957e-08 au
i 3.208711407206059 5.9347e-06 deg
node 18.29985793563144 8.1653e-05 deg
peri 239.2533526955672 9.9792e-05 deg
M 44.69370173578862 5.6845e-05 deg
tp 2459031.716198780309
(2020-Jul-01.21619878)
0.00021475 TDB
period 1359.524185270904
3.72
1.2072e-05
3.305e-08
d
yr
n .2647985257638245 2.3512e-09 deg/d
Q 2.530019816126314 1.4977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      7052 days (19.31 yr)  
   first obs. used      2001-03-24  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:16  

Additional Information
 Earth MOID = 1.25884 au 
 Jupiter MOID = 2.48037 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457225.5 (2015-Jul-22.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05306853865881968 4.1305e-08  
q 2.273978489972742 1.0005e-07 au
tp 2457669.792701069133
(2016-Oct-08.29270107)
0.00021596 TDB
node 18.35802340102101 8.167e-05 deg
peri 238.3828054538687 9.9847e-05 deg
i 3.209010734731863 5.9328e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      7052 days (19.31 yr)  
   first obs. used      2001-03-24  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:16  

Additional Information
 Jupiter MOID = 2.48037 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.706062523157091E-15 -4.095477811870916E-15 -2.017400469596924E-12 6.928302958450024E-15 -5.190708570618132E-13 2.918798860708089E-16
q -4.095477811870916E-15 1.001082520297685E-14 4.585196717268496E-12 -1.670859199073491E-14 1.16416539747754E-12 -5.695290750148885E-16
tp -2.017400469596924E-12 4.585196717268496E-12 4.664053252299764E-8 -7.606264803777089E-11 1.241992290987588E-8 8.852673317813364E-12
node 6.928302958450024E-15 -1.670859199073491E-14 -7.606264803777089E-11 6.670033853435585E-9 -6.679046758133113E-9 -7.925420190908415E-11
peri -5.190708570618132E-13 1.16416539747754E-12 1.241992290987588E-8 -6.679046758133113E-9 9.969444711800617E-9 8.144159166946864E-11
i 2.918798860708089E-16 -5.695290750148885E-16 8.852673317813364E-12 -7.925420190908415E-11 8.144159166946864E-11 3.519820825825592E-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 17.43   n/a E2021B55  
rotation period rot_per 6.054 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]

181355 (2006 RY42)          Discovered 2006-Sep-14 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2006 RY42 = 2005 JD125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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