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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2134950209133877 3.219e-08  
a 2.340850823688278 1.2001e-08 au
q 1.841090828129828 7.344e-08 au
i 1.256120325142785 4.3902e-06 deg
node 243.3764490244454 0.00019366 deg
peri 48.70118638580675 0.00019407 deg
M 158.4601079576088 1.4082e-05 deg
tp 2458424.693609179492
(2018-Nov-02.19360918)		 4.8825e-05 TDB
period 1308.154483593039
3.58		 1.006e-05
2.754e-08		 d
yr
n .2751968551995533 2.1164e-09 deg/d
Q 2.840610819246727 1.4564e-08 au
   Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      8198 days (22.44 yr)  
   first obs. used      1997-09-04  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:50  

Additional Information
 Earth MOID = .825199 au 
 Jupiter MOID = 2.35004 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457155.5 (2015-May-13.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138101110856419 3.2122e-08  
q 1.840041107199912 7.3275e-08 au
tp 2457117.607295117493
(2015-Apr-05.10729512)		 4.4715e-05 TDB
node 243.4173763805256 0.00019393 deg
peri 48.80396502631445 0.00019434 deg
i 1.255040808954164 4.3896e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      8198 days (22.44 yr)  
   first obs. used      1997-09-04  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:50  

Additional Information
 Jupiter MOID = 2.35004 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.031841595472868E-15 -2.335581520623364E-15 1.971315541153983E-13 -5.339185175132747E-16 2.038033425395662E-14 -1.116197273214743E-16
q -2.335581520623364E-15 5.369162195929659E-15 -3.303054323205158E-13 -5.393253059191159E-16 -1.447076283776153E-14 2.589559678293304E-16
tp 1.971315541153983E-13 -3.303054323205158E-13 1.999455490677326E-9 -7.619063017956539E-12 5.782832732502558E-10 -7.101011785653022E-13
node -5.339185175132747E-16 -5.393253059191159E-16 -7.619063017956539E-12 3.760745572371066E-8 -3.760054608283616E-8 -3.04660682413701E-10
peri 2.038033425395662E-14 -1.447076283776153E-14 5.782832732502558E-10 -3.760054608283616E-8 3.776667808396048E-8 3.043985665456926E-10
i -1.116197273214743E-16 2.589559678293304E-16 -7.101011785653022E-13 -3.04660682413701E-10 3.043985665456926E-10 1.926866279575312E-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 16.6   n/a MPO432398  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1988-Jul-07 10:05 00:02 Europ 0.0410738733144929 0.0410717619156321 0.0410759848392673 3.911369165903 3.91136909974578 2447349.920092146 2.15363633575498 158.685557628482 31.559001718764 -49.8045616256511 150698.597824613 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:51 2020-Nov-12 21:00

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