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109909 (2001 SR24)
Classification: Main-belt Asteroid          SPK-ID: 2109909
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09338117044453539 5.2115e-08  
a 2.783195432740812 1.8222e-08 au
q 2.52329738565559 1.433e-07 au
i 8.838678422015349 7.7134e-06 deg
node 350.4456382108549 2.8284e-05 deg
peri 240.5510744590075 4.713e-05 deg
M 134.9492132939422 3.8491e-05 deg
tp 2458364.756632814982
(2018-Sep-03.25663282)
0.00018129 TDB
period 1695.953659900885
4.64
1.6656e-05
4.56e-08
d
yr
n .2122699508316984 2.0847e-09 deg/d
Q 3.043093479826034 1.9924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      7570 days (20.73 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:35:28  

Additional Information
 Earth MOID = 1.52811 au 
 Jupiter MOID = 1.99285 au 
 T_jup = 3.309 
[ 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 14.3   n/a MPO348163  
diameter diameter 4.026 km 1.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.276122 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.250   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109909 (2001 SR24)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 SR24 = 1999 CS39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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