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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005996868951247205 8.042e-08  
a 3.013377587371723 4.2872e-08 au
q 2.995306756879629 2.3608e-07 au
i 10.4526816291002 1.005e-05 deg
node 185.1205260170467 3.123e-05 deg
peri 158.0194735534694 0.0006673 deg
M 221.7006986967323 0.00066829 deg
tp 2459734.500309124922
(2022-Jun-04.00030913)
0.0035525 TDB
period 1910.639524530472
5.23
4.0775e-05
1.116e-07
d
yr
n .1884185872730063 4.0211e-09 deg/d
Q 3.031448417863817 4.313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      6801 days (18.62 yr)  
   first obs. used      2001-09-12  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56808  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:47:05  

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

[ 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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