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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104171135534809 3.9927e-08  
a 2.592144978254581 1.3319e-08 au
q 2.322118292398949 1.0781e-07 au
i 10.0967691970152 4.2233e-06 deg
node 214.5900592210703 2.0608e-05 deg
peri 355.5225584613075 2.8094e-05 deg
M 233.8775357827227 2.2096e-05 deg
tp 2459534.544326311835
(2021-Nov-16.04432631)
9.5787e-05 TDB
period 1524.359349188199
4.17
1.1749e-05
3.217e-08
d
yr
n .2361647863357933 1.8202e-09 deg/d
Q 2.862171664110214 1.4707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1685  
   data-arc span      9224 days (25.25 yr)  
   first obs. used      1994-10-26  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49645  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:57  

Additional Information
 Earth MOID = 1.3166 au 
 Jupiter MOID = 2.10658 au 
 T_jup = 3.390 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456792.5 (2014-May-15.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040868592209008 3.9882e-08  
q 2.32250972352524 1.0767e-07 au
tp 2456488.405704436270
(2013-Jul-14.90570444)
8.549e-05 TDB
node 214.6102729985267 2.0614e-05 deg
peri 356.0327562025424 2.8165e-05 deg
i 10.09431605965684 4.2234e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1685  
   data-arc span      9224 days (25.25 yr)  
   first obs. used      1994-10-26  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49645  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:57  

Additional Information
 Jupiter MOID = 2.10658 au 
 T_jup = 3.390 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.590540325629787E-15 -4.270050179876161E-15 -8.681825266275301E-13 -7.135831958459708E-15 -1.909552190656196E-13 -5.072265689033228E-16
q -4.270050179876161E-15 1.159255380857599E-14 2.603288026937845E-12 1.927521548246181E-14 5.778811282580043E-13 1.429614082428198E-15
tp -8.681825266275301E-13 2.603288026937845E-12 7.308568882719545E-9 1.180737291250558E-11 1.653404875305227E-9 -1.176553732258148E-12
node -7.135831958459708E-15 1.927521548246181E-14 1.180737291250558E-11 4.249350253252552E-10 -4.154051704987311E-10 -1.088000194482058E-11
peri -1.909552190656196E-13 5.778811282580043E-13 1.653404875305227E-9 -4.154051704987311E-10 7.932411487394812E-10 1.047496465258E-11
i -5.072265689033228E-16 1.429614082428198E-15 -1.176553732258148E-12 -1.088000194482058E-11 1.047496465258E-11 1.783699634641341E-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 14.1   n/a MPO502468  
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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