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JPL Small-Body Database Browser
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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

[ hide close-approach data ]
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
1975-Nov-16 22:32 00:03 Jupiter 1.95419449514025 1.95419363448236 1.95419535579825 4.47298106120517 4.37500665178754 2442733.438847855 2.93964865013176 236.958297588934 38.8158871001578 88.1398083747914 1701499.37673507 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 15:15:15 2019-Jul-13 15:15
2022-Sep-20 09:50 < 00:01 Jupiter 1.95949587571593 1.95949506952027 1.95949668191147 4.49967371725232 4.40255976783111 2459842.909938734 0.567744951680579 72.9796163044286 36.3931192122098 86.8347521557432 1772261.38245497 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 15:15:15 2019-Jul-13 15:15
2153-Nov-28 18:33 00:10 Jupiter 1.96140756407049 1.96140610231279 1.96140902590412 4.43288275244139 4.33436974204625 2507759.272950639 10.0632540728046 765.207553021598 39.1771279795894 85.2870190017535 1686996.9607845 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 15:15:15 2019-Jul-13 15:15
2200-Oct-03 13:28 00:13 Jupiter 1.95326823503326 1.95326700539191 1.95326946480863 4.51483403495356 4.41774138114393 2524869.060830264 13.4220118570116 1080.18114893967 36.7664254158585 -87.5580982105407 1792955.24336353 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 15:15:15 2019-Jul-13 15:15

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