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243692 (1999 YJ26)
Classification: Main-belt Asteroid          SPK-ID: 2243692
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1373665511581455 7.3843e-08  
a 2.549376280083722 1.4643e-08 au
q 2.199177252884239 1.9293e-07 au
i 3.357550520376928 3.2496e-06 deg
node 104.4882671951834 0.00012052 deg
peri 263.2845110733475 0.00012182 deg
M 56.30973929216289 1.6052e-05 deg
tp 2458767.942498021089
(2019-Oct-11.44249802)
6.6737e-05 TDB
period 1486.788995381835
4.07
1.281e-05
3.507e-08
d
yr
n .2421325427604106 2.0861e-09 deg/d
Q 2.899575307283205 1.6654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      9789 days (26.80 yr)  
   first obs. used      1993-03-20  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 02:52:55  

Additional Information
 Earth MOID = 1.20104 au 
 Jupiter MOID = 2.56397 au 
 T_jup = 3.425 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457426.5 (2016-Feb-08.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .138845542571091 7.3958e-08  
q 2.194736396238399 1.9344e-07 au
tp 2457278.176494290027
(2015-Sep-12.67649429)
6.9619e-05 TDB
node 104.5755524559388 0.00012072 deg
peri 262.5398585587733 0.00012197 deg
i 3.355806299754891 3.2461e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      9789 days (26.80 yr)  
   first obs. used      1993-03-20  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 02:52:55  

Additional Information
 Jupiter MOID = 2.56397 au 
 T_jup = 3.425 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.469734462287767E-15 -1.427940642056964E-14 2.896537538112908E-12 1.387330194472149E-13 7.049617239482022E-13 -1.172039690165629E-14
q -1.427940642056964E-14 3.741790261498643E-14 -7.741262736758282E-12 -3.628858065816886E-13 -1.885707532069066E-12 3.083458460678906E-14
tp 2.896537538112908E-12 -7.741262736758282E-12 4.846825404324702E-9 1.029412480377824E-10 1.294869204034145E-9 -6.596297596502089E-12
node 1.387330194472149E-13 -3.628858065816886E-13 1.029412480377824E-10 1.457285119589515E-8 -1.451822766836558E-8 -8.442670450868411E-11
peri 7.049617239482022E-13 -1.885707532069066E-12 1.294869204034145E-9 -1.451822766836558E-8 1.487586047475142E-8 8.23506679290955E-11
i -1.172039690165629E-14 3.083458460678906E-14 -6.596297596502089E-12 -8.442670450868411E-11 8.23506679290955E-11 1.053698226831355E-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 16.6   n/a MPO450093  

243692 (1999 YJ26)          Discovered 1999-Dec-31 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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