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JPL Small-Body Database Browser
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46949 (1998 SL117)
Classification: Main-belt Asteroid          SPK-ID: 2046949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1045309660015886 3.9938e-08  
a 2.591335350353682 1.3359e-08 au
q 2.320460562947146 1.078e-07 au
i 10.09872942571231 4.2312e-06 deg
node 214.5909742873019 2.0945e-05 deg
peri 355.5168415053979 2.8368e-05 deg
M 139.3998318613713 2.1706e-05 deg
tp 2458010.511419895958
(2017-Sep-14.01141990)
8.9711e-05 TDB
period 1523.645229706419
4.17
1.1783e-05
3.226e-08
d
yr
n .2362754747503565 1.8272e-09 deg/d
Q 2.862210137760217 1.4756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1658  
   data-arc span      9169 days (25.10 yr)  
   first obs. used      1994-10-26  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49928  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:59:08  

Additional Information
 Earth MOID = 1.31516 au 
 Jupiter MOID = 2.10739 au 
 T_jup = 3.390 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456741.5 (2014-Mar-25.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040662302423979 3.9884e-08  
q 2.322521248313542 1.0767e-07 au
tp 2456488.382750244739
(2013-Jul-14.88275024)
8.587e-05 TDB
node 214.6118227471886 2.0955e-05 deg
peri 356.0259166433503 2.849e-05 deg
i 10.09440243667313 4.2304e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1658  
   data-arc span      9169 days (25.10 yr)  
   first obs. used      1994-10-26  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49928  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:59:08  

Additional Information
 Jupiter MOID = 2.10739 au 
 T_jup = 3.390 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.590757637098271E-15 -4.270203572425559E-15 -8.687671164739942E-13 -6.450907942531964E-15 -1.917793354918284E-13 -5.500123872501083E-16
q -4.270203572425559E-15 1.159306126667614E-14 2.595333507662975E-12 1.75963327448615E-14 5.774068151737685E-13 1.538621501025008E-15
tp -8.687671164739942E-13 2.595333507662975E-12 7.373576488863613E-9 1.190591268126151E-11 1.670785300972968E-9 -1.179377438134358E-12
node -6.450907942531964E-15 1.75963327448615E-14 1.190591268126151E-11 4.391179686144556E-10 -4.293530738899655E-10 -1.179338045434198E-11
peri -1.917793354918284E-13 5.774068151737685E-13 1.670785300972968E-9 -4.293530738899655E-10 8.116586411970359E-10 1.137409729546029E-11
i -5.500123872501083E-16 1.538621501025008E-15 -1.179377438134358E-12 -1.179338045434198E-11 1.137409729546029E-11 1.789664549888843E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO412498  
diameter diameter 4.182 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.176   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46949 (1998 SL117)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SL117 = 2000 AE166 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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