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109961 (2001 SE49)
Classification: Main-belt Asteroid          SPK-ID: 2109961
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1528935490432363 5.3556e-08  
a 3.072798187585465 2.2248e-08 au
q 2.602987167191899 1.6973e-07 au
i 5.278163137528176 4.8162e-06 deg
node 94.75714503123261 6.3929e-05 deg
peri 252.6668567565571 6.5842e-05 deg
M 182.6131554164349 1.6262e-05 deg
tp 2459969.934322060171
(2023-Jan-25.43432206)
9.2862e-05 TDB
period 1967.430881139853
5.39
2.1368e-05
5.85e-08
d
yr
n .1829797445242041 1.9873e-09 deg/d
Q 3.542609207979031 2.565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      8462 days (23.17 yr)  
   first obs. used      1996-12-01  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:29  

Additional Information
 Earth MOID = 1.60233 au 
 Jupiter MOID = 1.8903 au 
 T_jup = 3.206 
[ 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 14.8   n/a MPO345031  
diameter diameter 6.115 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109961 (2001 SE49)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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