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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005996881854274169 8.1344e-08  
a 3.013377609731265 4.8292e-08 au
q 2.995306740223392 2.3655e-07 au
i 10.45268155944823 1.006e-05 deg
node 185.1205368579058 3.5201e-05 deg
peri 158.0192498638168 0.0007039 deg
M 221.7009060075534 0.00070304 deg
tp 2459734.499217027078
(2022-Jun-03.99921703)
0.0037342 TDB
period 1910.639545796157
5.23
4.5929e-05
1.257e-07
d
yr
n .1884185851758811 4.5294e-09 deg/d
Q 3.031448479239139 4.8582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      2001-09-12  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 13:57:18  

Additional Information
 Earth MOID = 1.99128 au 
 Jupiter MOID = 1.95702 au 
 T_jup = 3.223 
[ show covariance matrix ]

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 1.95419482099708 1.95419397946579 1.95419566252838 4.47298380244922 4.37500947093918 2442733.438544839 2.81545084212689 227.078660882093 38.1651014656628 88.6603953345757 1718832.92772753 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 13:57:32 2020-Feb-26 13:57
2022-Sep-20 09:50 < 00:01 Jupiter 1.95949618766692 1.95949538420574 1.95949699112811 4.49967633667024 4.40256246066049 2459842.910012706 0.543745791360106 70.5881014470792 36.1782201256573 86.0016442147303 1775988.19427369 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 13:57:32 2020-Feb-26 13:57
2153-Nov-28 18:35 00:10 Jupiter 1.9614080939173 1.96140664860422 1.96140953929973 4.43288466252651 4.33437172245872 2507759.273968329 9.60579734907332 730.662034695586 38.6058971335704 85.1399950266157 1707573.14809625 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 13:57:32 2020-Feb-26 13:57
2200-Oct-03 13:30 00:13 Jupiter 1.95326840423328 1.95326722690649 1.95326958167522 4.51483643493939 4.41774384237933 2524869.062222973 12.8149362658355 1031.91988347033 36.5459410274735 -87.6193744764701 1802398.26355873 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 13:57:32 2020-Feb-26 13:57

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