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85487 (1997 SC1)
Classification: Main-belt Asteroid          SPK-ID: 2085487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2134677324310737 3.0447e-08  
a 2.340642509615502 1.1491e-08 au
q 1.840990860656103 7.0162e-08 au
i 1.255946348100693 3.8564e-06 deg
node 243.3527814175787 0.00018836 deg
peri 48.79353006984341 0.00018874 deg
M 267.3433745017961 1.4496e-05 deg
tp 2459733.147224155830
(2022-Jun-02.64722416)
5.4343e-05 TDB
period 1307.979867003122
3.58
9.6318e-06
2.637e-08
d
yr
n .2752335942485425 2.0268e-09 deg/d
Q 2.8402941585749 1.3944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8597 days (23.54 yr)  
   first obs. used      1997-09-04  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:50:58  

Additional Information
 Earth MOID = .824724 au 
 Jupiter MOID = 2.34896 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457396.5 (2016-Jan-09.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138427301592681 3.04e-08  
q 1.839853064675351 7.0079e-08 au
tp 2457117.550483880272
(2015-Apr-05.05048388)
4.344e-05 TDB
node 243.4075826461937 0.00018854 deg
peri 48.78548456657813 0.00018892 deg
i 1.255142197050053 3.8561e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8597 days (23.54 yr)  
   first obs. used      1997-09-04  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:50:58  

Additional Information
 Jupiter MOID = 2.34896 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.241487161446542E-16 -2.113438634495068E-15 3.061205391342255E-13 -3.365736508315946E-15 6.837630254780018E-14 -2.07356409132297E-18
q -2.113438634495068E-15 4.911063766513875E-15 -5.547269542649378E-13 5.281903779884769E-15 -1.133892091943847E-13 2.558027229189454E-17
tp 3.061205391342255E-13 -5.547269542649378E-13 1.887014072262155E-9 -1.467592798568241E-11 5.38936145231481E-10 -3.446973371382608E-13
node -3.365736508315946E-15 5.281903779884769E-15 -1.467592798568241E-11 3.554772402167243E-8 -3.554321822473641E-8 -2.108686147587189E-10
peri 6.837630254780018E-14 -1.133892091943847E-13 5.38936145231481E-10 -3.554321822473641E-8 3.56925793402106E-8 2.107313846107203E-10
i -2.07356409132297E-18 2.558027229189454E-17 -3.446973371382608E-13 -2.108686147587189E-10 2.107313846107203E-10 1.486979910824684E-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 16.68   n/a MPCxxxxx  

85487 (1997 SC1)          Discovered 1997-Sep-19 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 SC1 = 2000 GL42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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