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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .213459217941807 3.0481e-08  
a 2.340909428323885 1.1476e-08 au
q 1.841220732481266 7.0251e-08 au
i 1.255944814084206 3.869e-06 deg
node 243.3671043270802 0.00018841 deg
peri 48.74179279965929 0.00018879 deg
M 213.4508271130902 1.4239e-05 deg
tp 2459733.044880419067
(2022-Jun-02.54488042)
5.4353e-05 TDB
period 1308.203609574851
3.58
9.62e-06
2.634e-08
d
yr
n .2751865209399593 2.0236e-09 deg/d
Q 2.840598124166505 1.3926e-08 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      8593 days (23.53 yr)  
   first obs. used      1997-09-04  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:13:16  

Additional Information
 Earth MOID = .823373 au 
 Jupiter MOID = 2.34951 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457387.5 (2015-Dec-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138404237877483 3.0435e-08  
q 1.839872736001009 7.0145e-08 au
tp 2457117.554327631645
(2015-Apr-05.05432763)
4.3466e-05 TDB
node 243.4079674908489 0.0001886 deg
peri 48.7872912769889 0.00018898 deg
i 1.255128170136417 3.869e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      8593 days (23.53 yr)  
   first obs. used      1997-09-04  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:13:16  

Additional Information
 Jupiter MOID = 2.34951 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.263099380283967E-16 -2.11792125035084E-15 3.039747477926515E-13 -3.291774635716746E-15 6.741213361307666E-14 -6.390724134469648E-18
q -2.11792125035084E-15 4.920365519688165E-15 -5.502758310075587E-13 5.137984190187094E-15 -1.113980261187656E-13 3.430412699730355E-17
tp 3.039747477926515E-13 -5.502758310075587E-13 1.889328650424511E-9 -1.455853909743388E-11 5.397590150876294E-10 -3.532750850574585E-13
node -3.291774635716746E-15 5.137984190187094E-15 -1.455853909743388E-11 3.556980897528687E-8 -3.556526923591565E-8 -2.123195371633639E-10
peri 6.741213361307666E-14 -1.113980261187656E-13 5.397590150876294E-10 -3.556526923591565E-8 3.571498054208798E-8 2.121797577571058E-10
i -6.390724134469648E-18 3.430412699730355E-17 -3.532750850574585E-13 -2.123195371633639E-10 2.121797577571058E-10 1.49690518472596E-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 16.65   n/a E2021B10  

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 25 CATAB v2.0f-lin.ifort 2021-Apr-13 14:13:18 2021-Apr-13 14:13

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