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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 
[ 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

[ 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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