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3622 Ilinsky (1981 SX7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003622
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04393524943299716 3.9624e-08  
a 3.391932470875163 2.1737e-08 au
q 3.24290707170738 1.377e-07 au
i 4.933850939709685 4.2739e-06 deg
node 254.2623471543482 5.0919e-05 deg
peri 147.9082538717318 7.0142e-05 deg
M 66.29050580340308 4.7737e-05 deg
tp 2458580.336758481167
(2019-Apr-06.83675848)
0.00030215 TDB
period 2281.756114448214
6.25
2.1933e-05
6.005e-08
d
yr
n .1577732158666997 1.5166e-09 deg/d
Q 3.540957870042945 2.2692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2225  
   data-arc span      32055 days (87.76 yr)  
   first obs. used      1933-01-26  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:58:45  

Additional Information
 Earth MOID = 2.25296 au 
 Jupiter MOID = 1.72403 au 
 T_jup = 3.141 
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Orbital Elements at Epoch 2456335.5 (2013-Feb-12.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03802139084579376 4.0103e-08  
q 3.263365627972747 1.377e-07 au
tp 2456334.156389171324
(2013-Feb-10.65638917)
0.00034624 TDB
node 254.5611134978798 5.059e-05 deg
peri 153.5539812912353 7.4824e-05 deg
i 4.949595789853716 4.2885e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2225  
   data-arc span      32055 days (87.76 yr)  
   first obs. used      1933-01-26  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:58:45  

Additional Information
 Jupiter MOID = 1.72403 au 
 T_jup = 3.141 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.608229568285265E-15 -5.45840038872081E-15 -1.133772537572773E-12 -2.430684412304212E-15 -1.759817614294941E-13 -5.017454081638312E-16
q -5.45840038872081E-15 1.896043347667663E-14 3.443599199516866E-12 8.102782356052703E-15 5.357912934826654E-13 1.686103362777619E-15
tp -1.133772537572773E-12 3.443599199516866E-12 1.198818902056368E-7 5.301300756397753E-11 1.912014884851782E-8 -2.340621556401307E-12
node -2.430684412304212E-15 8.102782356052703E-15 5.301300756397753E-11 2.55933684235811E-9 -2.541047920791392E-9 -3.383839641186835E-11
peri -1.759817614294941E-13 5.357912934826654E-13 1.912014884851782E-8 -2.541047920791392E-9 5.598625050417198E-9 3.333023218726229E-11
i -5.017454081638312E-16 1.686103362777619E-15 -2.340621556401307E-12 -3.383839641186835E-11 3.333023218726229E-11 1.839098939059692E-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 11.8   n/a MPO502188  
diameter diameter 21.880 km 0.458 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3622 Ilinsky (1981 SX7)          Discovered 1981-Sep-29 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 SX7 = 1933 BF = 1975 WO = 1980 RA5 = 1983 CJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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