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24718 (1991 SW)
Classification: Main-belt Asteroid          SPK-ID: 2024718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07044323043299257 3.3465e-08  
a 3.172713442955512 2.0737e-08 au
q 2.949217258795543 1.0201e-07 au
i 10.6920929626381 3.6008e-06 deg
node 114.6545861295861 2.4377e-05 deg
peri 196.5468835027281 4.1852e-05 deg
M 131.1545710599944 3.29e-05 deg
tp 2458644.486511108323
(2019-Jun-09.98651111)
0.00018977 TDB
period 2064.166378746838
5.65
2.0238e-05
5.541e-08
d
yr
n .1744045459254874 1.7099e-09 deg/d
Q 3.39620962711548 2.2198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1432  
   data-arc span      10803 days (29.58 yr)  
   first obs. used      1991-09-14  
   last obs. used      2021-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:03:22  

Additional Information
 Earth MOID = 1.93554 au 
 Jupiter MOID = 1.82837 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457420.5 (2016-Feb-02.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0745514538561249 3.3368e-08  
q 2.933661935276521 1.0236e-07 au
tp 2456580.749865328084
(2013-Oct-15.24986533)
0.00018303 TDB
node 114.8806647191059 2.4417e-05 deg
peri 196.2995720737401 4.0349e-05 deg
i 10.68695558784283 3.5982e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1432  
   data-arc span      10803 days (29.58 yr)  
   first obs. used      1991-09-14  
   last obs. used      2021-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:03:22  

Additional Information
 Jupiter MOID = 1.82837 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.113398770748079E-15 -3.360076157787123E-15 -6.483191994689215E-14 4.850428855523953E-15 -2.747266901606524E-14 -4.673434793693566E-16
q -3.360076157787123E-15 1.047748790354965E-14 -7.565675475404731E-13 -1.443574178744991E-14 -6.091572061675964E-14 2.40635496604984E-15
tp -6.483191994689215E-14 -7.565675475404731E-13 3.349816594214378E-8 -1.055926834210104E-12 5.909535245573667E-9 -6.132685233933748E-12
node 4.850428855523953E-15 -1.443574178744991E-14 -1.055926834210104E-12 5.962126574648105E-10 -5.858369889547579E-10 -7.362617009028884E-12
peri -2.747266901606524E-14 -6.091572061675964E-14 5.909535245573667E-9 -5.858369889547579E-10 1.628006309084642E-9 6.134639069654542E-12
i -4.673434793693566E-16 2.40635496604984E-15 -6.132685233933748E-12 -7.362617009028884E-12 6.134639069654542E-12 1.294731594031685E-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 13.64   n/a E2021B10  
diameter diameter 11.124 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24718 (1991 SW)          Discovered 1991-Sep-30 by McNaught, R. H. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 SW = 2000 EF76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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