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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 | 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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119566076326012 2.907e-08  
a 2.420414325363077 1.0352e-08 au
q 2.149432948430076 6.8023e-08 au
i 6.20443375013769 3.6041e-06 deg
node 184.8239578788048 3.261e-05 deg
peri 128.4097694660744 3.8178e-05 deg
M 149.8893233926191 2.1893e-05 deg
tp 2458427.834266244845
(2018-Nov-05.33426624)
8.2394e-05 TDB
period 1375.412601015233
3.77
8.8236e-06
2.416e-08
d
yr
n .2617396406971066 1.6791e-09 deg/d
Q 2.691395702296078 1.1511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1327  
   data-arc span      9274 days (25.39 yr)  
   first obs. used      1995-06-01  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:19:50  

Additional Information
 Earth MOID = 1.14241 au 
 Jupiter MOID = 2.55657 au 
 T_jup = 3.497 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456863.5 (2014-Jul-25.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1130278070790984 2.91e-08  
q 2.14630878921074 6.8169e-08 au
tp 2457053.084403423827
(2015-Jan-30.58440342)
7.9199e-05 TDB
node 184.8577633574046 3.2591e-05 deg
peri 128.4760051036154 3.8064e-05 deg
i 6.206226759905954 3.6056e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1327  
   data-arc span      9274 days (25.39 yr)  
   first obs. used      1995-06-01  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:19:50  

Additional Information
 Jupiter MOID = 2.55657 au 
 T_jup = 3.497 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.46791508920951E-16 -1.967516826963975E-15 2.626303759933461E-13 6.393976090927742E-15 4.537882609277668E-14 1.13759161011219E-15
q -1.967516826963975E-15 4.646965201084498E-15 -4.799994358004475E-13 -1.423657018892947E-14 -7.669045215150086E-14 -2.43300439795556E-15
tp 2.626303759933461E-13 -4.799994358004475E-13 6.272559793224771E-9 -8.437090188111976E-13 1.569709724170356E-9 9.863139641677431E-13
node 6.393976090927742E-15 -1.423657018892947E-14 -8.437090188111976E-13 1.062162253518244E-9 -1.055928076298389E-9 2.687003798519993E-11
peri 4.537882609277668E-14 -7.669045215150086E-14 1.569709724170356E-9 -1.055928076298389E-9 1.448853198450117E-9 -2.650005637523002E-11
i 1.13759161011219E-15 -2.43300439795556E-15 9.863139641677431E-13 2.687003798519993E-11 -2.650005637523002E-11 1.300021333560047E-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 14.9   n/a MPO439215  
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1956-Oct-02 05:47 < 00:01 Eunom 0.025763738560648 0.0257574716673775 0.0257700057567802 5.62744164919911 5.62744155237712 2435748.740720320 0.389578134451191 342.331293800774 35.5597367981284 -24.3007032264053 45741.6980298031 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:19:53 2020-Nov-13 02:19

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