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46548 (1989 SK1)
Classification: Main-belt Asteroid          SPK-ID: 2046548
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .221823439570132 4.7752e-08  
a 2.679863698980834 1.5135e-08 au
q 2.085407115693769 1.3527e-07 au
i 4.608253318228087 3.8924e-06 deg
node 56.887806575679 5.1491e-05 deg
peri 279.0086121081656 5.2345e-05 deg
M 19.73749721985226 9.6787e-06 deg
tp 2458912.646904845616
(2020-Mar-04.14690485)
4.2708e-05 TDB
period 1602.387268420604
4.39
1.3575e-05
3.717e-08
d
yr
n .2246647905252234 1.9033e-09 deg/d
Q 3.2743202822679 1.8493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      10920 days (29.90 yr)  
   first obs. used      1989-09-26  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:11:43  

Additional Information
 Earth MOID = 1.08203 au 
 Jupiter MOID = 2.12937 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232770827645461 4.7687e-08  
q 2.080756377448279 1.3523e-07 au
tp 2457312.147025652384
(2015-Oct-16.64702565)
3.779e-05 TDB
node 56.90640351672487 5.1458e-05 deg
peri 279.4399209687608 5.2303e-05 deg
i 4.611576657329612 3.8934e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      10920 days (29.90 yr)  
   first obs. used      1989-09-26  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:11:43  

Additional Information
 Jupiter MOID = 2.12937 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.274028269512159E-15 -6.432699368618355E-15 -3.108417111339246E-13 1.49744939128816E-14 2.224175329097824E-14 -4.462870069239961E-15
q -6.432699368618355E-15 1.828610063689011E-14 9.158492728401227E-13 -4.435804502311393E-14 -5.827339291266737E-14 1.286329129133733E-14
tp -3.108417111339246E-13 9.158492728401227E-13 1.428078608551859E-9 -1.455382575283523E-11 3.629420633546212E-10 1.65822465327973E-12
node 1.49744939128816E-14 -4.435804502311393E-14 -1.455382575283523E-11 2.647906946458205E-9 -2.64191419392558E-9 2.387361197534681E-11
peri 2.224175329097824E-14 -5.827339291266737E-14 3.629420633546212E-10 -2.64191419392558E-9 2.735595375403362E-9 -2.361332170546915E-11
i -4.462870069239961E-15 1.286329129133733E-14 1.65822465327973E-12 2.387361197534681E-11 -2.361332170546915E-11 1.51587479648884E-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 14.9   n/a MPO436107  
diameter diameter 5.881 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46548 (1989 SK1)          Discovered 1989-Sep-26 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 SK1 = 1998 UN24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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