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17641 (1996 SW7)
Classification: Main-belt Asteroid          SPK-ID: 2017641
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1120044483039863 2.7437e-08  
a 2.420341247103116 9.4978e-09 au
q 2.149252261013949 6.5154e-08 au
i 6.204954549184085 3.4692e-06 deg
node 184.8162948176585 2.9268e-05 deg
peri 128.4749851887226 3.5052e-05 deg
M 202.1662284657817 2.1894e-05 deg
tp 2459803.490907618509
(2022-Aug-11.99090762)
8.5303e-05 TDB
period 1375.350310852839
3.77
8.0956e-06
2.216e-08
d
yr
n .261751494989497 1.5407e-09 deg/d
Q 2.691430233192283 1.0562e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1471  
   data-arc span      9428 days (25.81 yr)  
   first obs. used      1995-06-01  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52595  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:35:09  

Additional Information
 Earth MOID = 1.14027 au 
 Jupiter MOID = 2.55599 au 
 T_jup = 3.497 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457151.5 (2015-May-09.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1130485723821378 2.7473e-08  
q 2.146372106424929 6.5299e-08 au
tp 2457052.855638556349
(2015-Jan-30.35563856)
7.8028e-05 TDB
node 184.8506901351885 2.9251e-05 deg
peri 128.4071238407604 3.4943e-05 deg
i 6.206529218570431 3.4708e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1471  
   data-arc span      9428 days (25.81 yr)  
   first obs. used      1995-06-01  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52595  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:35:09  

Additional Information
 Jupiter MOID = 2.55599 au 
 T_jup = 3.497 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.547737669452004E-16 -1.779784270144981E-15 3.892251074339288E-13 6.113882551637271E-15 8.695855087473123E-14 9.674703012412013E-16
q -1.779784270144981E-15 4.263994360067393E-15 -7.337081727111443E-13 -1.40285513713941E-14 -1.600543719169398E-13 -2.10351725439319E-15
tp 3.892251074339288E-13 -7.337081727111443E-13 6.088429153397141E-9 7.490857398230377E-12 1.501714657964424E-9 1.785664473548598E-12
node 6.113882551637271E-15 -1.40285513713941E-14 7.490857398230377E-12 8.556242091678391E-10 -8.48426460485299E-10 1.307417304779541E-11
peri 8.695855087473123E-14 -1.600543719169398E-13 1.501714657964424E-9 -8.48426460485299E-10 1.221042267790969E-9 -1.256157794963515E-11
i 9.674703012412013E-16 -2.10351725439319E-15 1.785664473548598E-12 1.307417304779541E-11 -1.256157794963515E-11 1.204645940004404E-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 14.96   n/a MPCxxxxx  
diameter diameter 3.228 km 0.842 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17641 (1996 SW7)          Discovered 1996-Sep-18 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 SW7 = 1998 BH46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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