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118333 (1999 AB24)
Classification: Main-belt Asteroid          SPK-ID: 2118333
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2884129848199226 6.3012e-08  
a 2.345556715521124 9.4486e-09 au
q 1.669067702133262 1.4786e-07 au
i 24.14259847354026 8.5059e-06 deg
node 348.0015907796028 8.1724e-06 deg
peri 128.6089152981793 1.7401e-05 deg
M 94.49365183047568 1.1513e-05 deg
tp 2459052.096570628397
(2020-Jul-21.59657063)
4.1455e-05 TDB
period 1312.101206504434
3.59
7.9283e-06
2.171e-08
d
yr
n .274369079317498 1.6579e-09 deg/d
Q 3.022045728908985 1.2174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      8172 days (22.37 yr)  
   first obs. used      1999-01-15  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49314  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:10:11  

Additional Information
 Earth MOID = .7562 au 
 Jupiter MOID = 2.20979 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457434.5 (2016-Feb-16.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2877983495133986 6.3375e-08  
q 1.671124372524124 1.4879e-07 au
tp 2457740.216097958739
(2016-Dec-17.71609796)
4.0737e-05 TDB
node 348.0460553355965 8.1702e-06 deg
peri 128.7137988070156 1.7414e-05 deg
i 24.14677377179354 8.507e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      8172 days (22.37 yr)  
   first obs. used      1999-01-15  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49314  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:10:11  

Additional Information
 Jupiter MOID = 2.20979 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.016397654652859E-15 -9.420093987051062E-15 2.136593792096409E-12 -5.346999041723681E-14 8.266149851355947E-13 -4.829216008900804E-14
q -9.420093987051062E-15 2.2139292687998E-14 -5.008061224091802E-12 1.251647415378974E-13 -1.940694719594698E-12 1.151557438798982E-13
tp 2.136593792096409E-12 -5.008061224091802E-12 1.659507618896777E-9 -3.31493937542007E-11 6.307732378854331E-10 -2.725688946637381E-11
node -5.346999041723681E-14 1.251647415378974E-13 -3.31493937542007E-11 6.675211744746002E-11 -7.233912641542345E-11 -1.463313308664066E-11
peri 8.266149851355947E-13 -1.940694719594698E-12 6.307732378854331E-10 -7.233912641542345E-11 3.032560828352523E-10 3.237433510105837E-12
i -4.829216008900804E-14 1.151557438798982E-13 -2.725688946637381E-11 -1.463313308664066E-11 3.237433510105837E-12 7.236923995369E-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 15.28   n/a MPCxxxxx  
diameter diameter 2.609 km 0.497 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.284   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118333 (1999 AB24)          Discovered 1999-Jan-15 by CSS at Catalina
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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