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85166 (1989 OC)
Classification: Main-belt Asteroid          SPK-ID: 2085166
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 .2960838070185018 4.0293e-08  
a 2.396411321539917 7.7764e-09 au
q 1.686872734276139 9.4514e-08 au
i 8.014736088198147 5.1515e-06 deg
node 306.9036371835628 2.9613e-05 deg
peri 327.6735899800846 3.0663e-05 deg
M 112.6433221342071 8.2063e-06 deg
tp 2458576.521903643375
(2019-Apr-03.02190364)
3.014e-05 TDB
period 1355.003668184911
3.71
6.5956e-06
1.806e-08
d
yr
n .2656819375863655 1.2932e-09 deg/d
Q 3.105949908803695 1.0079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      11110 days (30.42 yr)  
   first obs. used      1989-07-21  
   last obs. used      2019-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:52  

Additional Information
 Earth MOID = .676907 au 
 Jupiter MOID = 2.06621 au 
 T_jup = 3.455 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457024.5 (2015-Jan-02.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2955771023329037 4.025e-08  
q 1.688146517375193 9.4347e-08 au
tp 2457221.829488328631
(2015-Jul-18.32948833)
2.8792e-05 TDB
node 306.9416572462009 2.9622e-05 deg
peri 327.7007292591827 3.0679e-05 deg
i 8.01247256071313 5.1507e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      11110 days (30.42 yr)  
   first obs. used      1989-07-21  
   last obs. used      2019-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:52  

Additional Information
 Jupiter MOID = 2.06621 au 
 T_jup = 3.455 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.620030431791118E-15 -3.791980509104401E-15 2.74648492733809E-13 -2.750987841171094E-15 2.112428424490543E-14 -3.650034946525115E-15
q -3.791980509104401E-15 8.901367666799819E-15 -6.409528718440972E-13 6.025679501556753E-15 -5.068726384992089E-14 8.285888750349602E-15
tp 2.74648492733809E-13 -6.409528718440972E-13 8.289693657363611E-10 1.370049202854219E-11 2.376133301774687E-10 -2.043908907102846E-12
node -2.750987841171094E-15 6.025679501556753E-15 1.370049202854219E-11 8.774851676636509E-10 -8.646123271974588E-10 3.163741231396624E-11
peri 2.112428424490543E-14 -5.068726384992089E-14 2.376133301774687E-10 -8.646123271974588E-10 9.412192630124921E-10 -3.198807649985852E-11
i -3.650034946525115E-15 8.285888750349602E-15 -2.043908907102846E-12 3.163741231396624E-11 -3.198807649985852E-11 2.65294550551713E-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 MPO502664  

85166 (1989 OC)          Discovered 1989-Jul-21 by McNaught, R. H. at Siding Spring
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
2085-Feb-28 15:12 00:01 Iris 0.0384667323204491 0.0384653661976136 0.0384681021677934 9.72768427315508 9.727684257792 2482650.133623183 1.42914512577405 834.336290734657 47.496242898595 86.6310425528602 120936.011036326 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 21:01:55 2020-Nov-12 21:01

Alternate Designations
 1989 OC = 2000 JM79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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