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48781 (1997 SL)
Classification: Main-belt Asteroid          SPK-ID: 2048781
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2462740181851166 8.1353e-08  
a 2.852526153215275 2.1862e-08 au
q 2.150023075484815 2.2393e-07 au
i 1.835048186169629 7.1451e-06 deg
node 218.9237599215787 0.00014252 deg
peri 164.7658259272248 0.00014293 deg
M 227.0313468523847 1.7413e-05 deg
tp 2459650.464517064292
(2022-Mar-11.96451706)
9.1734e-05 TDB
period 1759.717201041241
4.82
2.023e-05
5.539e-08
d
yr
n .2045783264418764 2.3519e-09 deg/d
Q 3.555029230945734 2.7246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      14775 days (40.45 yr)  
   first obs. used      1978-10-28  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58297  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:47:51  

Additional Information
 Earth MOID = 1.15374 au 
 Jupiter MOID = 1.90515 au 
 T_jup = 3.259 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456074.5 (2012-May-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2457447344464689 8.1737e-08  
q 2.152369880130765 2.2493e-07 au
tp 2456134.293119588021
(2012-Jul-25.79311959)
5.7871e-05 TDB
node 218.9839961452599 0.00014237 deg
peri 165.4205003658248 0.00014277 deg
i 1.835233692572244 7.1492e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      14775 days (40.45 yr)  
   first obs. used      1978-10-28  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58297  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:47:51  

Additional Information
 Jupiter MOID = 1.90515 au 
 T_jup = 3.259 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.680948562704827E-15 -1.834978899918889E-14 2.354795509719477E-12 5.73714946988E-15 2.517521903485331E-13 -1.881179505102012E-15
q -1.834978899918889E-14 5.05953695208948E-14 -6.07697817683055E-12 -7.744809203672001E-15 -6.298864657969296E-13 5.345477729660919E-15
tp 2.354795509719477E-12 -6.07697817683055E-12 3.349014469748273E-9 9.02744662149721E-12 6.186246473719616E-10 -1.09796468454318E-12
node 5.73714946988E-15 -7.744809203672001E-15 9.02744662149721E-12 2.026797293716681E-8 -2.025493473564597E-8 -1.633389488521625E-10
peri 2.517521903485331E-13 -6.298864657969296E-13 6.186246473719616E-10 -2.025493473564597E-8 2.038279021677389E-8 1.630883676514588E-10
i -1.881179505102012E-15 5.345477729660919E-15 -1.09796468454318E-12 -1.633389488521625E-10 1.630883676514588E-10 5.11113772471916E-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 15.2   n/a MPO468355  

48781 (1997 SL)          Discovered 1997-Sep-20 by Sarounova, L. at Ondrejov
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 SL = 1978 UU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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