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109940 (2001 SR41)
Classification: Main-belt Asteroid          SPK-ID: 2109940
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1457803561338303 5.2009e-08  
a 3.095899553340547 2.1293e-08 au
q 2.644578213899996 1.6367e-07 au
i 1.198280457322313 6.0126e-06 deg
node 170.1257460079569 0.00021297 deg
peri 201.973147008613 0.00021369 deg
M 146.3044277355347 1.7588e-05 deg
tp 2458191.900090964005
(2018-Mar-14.40009096)
9.349e-05 TDB
period 1989.659313518206
5.45
2.0526e-05
5.62e-08
d
yr
n .1809354986323923 1.8666e-09 deg/d
Q 3.547220892781098 2.4397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2001-08-27  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:09  

Additional Information
 Earth MOID = 1.64479 au 
 Jupiter MOID = 1.91692 au 
 T_jup = 3.207 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456672.5 (2014-Jan-15.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420918392451102 5.1758e-08  
q 2.662565749202626 1.6249e-07 au
tp 2456203.742199887567
(2012-Oct-03.24219989)
9.1029e-05 TDB
node 170.2279139005446 0.00021404 deg
peri 202.780159751495 0.00021481 deg
i 1.193137115906995 5.9974e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2001-08-27  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:09  

Additional Information
 Jupiter MOID = 1.91692 au 
 T_jup = 3.207 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.678862566011486E-15 -8.357590191629389E-15 -9.974654532088297E-13 2.399463882814915E-14 -2.514262247519065E-13 -5.064745931485462E-16
q -8.357590191629389E-15 2.640330615534954E-14 3.313729184646679E-12 -7.57459773464226E-14 8.376864304581401E-13 1.370644507855462E-15
tp -9.974654532088297E-13 3.313729184646679E-12 8.286249105824824E-9 -1.966742099524549E-11 1.67724898981314E-9 -4.454777955914198E-13
node 2.399463882814915E-14 -7.57459773464226E-14 -1.966742099524549E-11 4.5812009447435E-8 -4.580497519364585E-8 6.397641898409475E-11
peri -2.514262247519065E-13 8.376864304581401E-13 1.67724898981314E-9 -4.580497519364585E-8 4.614324216819572E-8 -6.40364219340458E-11
i -5.064745931485462E-16 1.370644507855462E-15 -4.454777955914198E-13 6.397641898409475E-11 -6.40364219340458E-11 3.596926093007308E-11

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 15.4   n/a MPO426696  
diameter diameter 5.360 km 0.831 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109940 (2001 SR41)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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