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469377 (2001 SM99)
Classification: Main-belt Asteroid          SPK-ID: 2469377
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005606592287374037 8.1968e-08  
a 3.014482163080457 5.0921e-08 au
q 2.997581190634503 2.3788e-07 au
i 10.4508446146743 1.0115e-05 deg
node 185.124883990338 3.6581e-05 deg
peri 158.6879703335188 0.00077293 deg
M 145.6703691139033 0.00077079 deg
tp 2457826.953857977189
(2017-Mar-14.45385798)
0.0040918 TDB
period 1911.690159242091
5.23
4.8438e-05
1.326e-07
d
yr
n .1883150353939813 4.7715e-09 deg/d
Q 3.03138313552641 5.1206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      6346 days (17.37 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:15:12  

Additional Information
 Earth MOID = 1.99263 au 
 Jupiter MOID = 1.9562 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004866052664023648 8.6694e-08  
q 2.998971789415813 2.5213e-07 au
tp 2457869.620201507835
(2017-Apr-26.12020151)
0.0043723 TDB
node 185.1447202593224 3.6578e-05 deg
peri 166.8268760808133 0.00082617 deg
i 10.45173089492534 1.0117e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      6346 days (17.37 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:15:12  

Additional Information
 Jupiter MOID = 1.9562 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.515783785400824E-15 -2.144884008886641E-14 1.659641154461068E-10 7.651140905155752E-15 3.125912840131715E-11 -3.367331175364162E-15
q -2.144884008886641E-14 6.356885115316266E-14 -4.959810575614096E-10 -7.330387313692653E-15 -9.358859531141425E-11 1.760982283784976E-14
tp 1.659641154461068E-10 -4.959810575614096E-10 1.911702497749691E-5 3.869368618712916E-10 3.608752298835075E-6 1.154009354623707E-11
node 7.651140905155752E-15 -7.330387313692653E-15 3.869368618712916E-10 1.337936857815431E-9 -1.242591558645115E-9 1.02613520452826E-10
peri 3.125912840131715E-11 -9.358859531141425E-11 3.608752298835075E-6 -1.242591558645115E-9 6.825626071297681E-7 -9.884296086981943E-11
i -3.367331175364162E-15 1.760982283784976E-14 1.154009354623707E-11 1.02613520452826E-10 -9.884296086981943E-11 1.023437620598334E-10

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 16.1   n/a MPO437768  

469377 (2001 SM99)          Discovered 2001-Sep-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22

[ show close-approach data ]
Alternate Designations
 2001 SM99 = 2015 HW34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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