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215279 (2001 QN85)
Classification: Main-belt Asteroid          SPK-ID: 2215279
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791505501532763 6.576e-08  
a 2.615932580453977 1.9091e-08 au
q 2.147286819501767 1.7231e-07 au
i 14.76834243510801 5.6094e-06 deg
node 36.74231540900077 1.8791e-05 deg
peri 317.1916812303614 2.2689e-05 deg
M 149.0688084542982 1.3629e-05 deg
tp 2458360.584652200100
(2018-Aug-30.08465220)
5.6275e-05 TDB
period 1545.390532041392
4.23
1.6917e-05
4.632e-08
d
yr
n .232950825397161 2.5501e-09 deg/d
Q 3.084578341406186 2.2511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      8208 days (22.47 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48031  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:17:09  

Additional Information
 Earth MOID = 1.16815 au 
 Jupiter MOID = 2.43217 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457643.5 (2016-Sep-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783661696830973 6.592e-08  
q 2.151401409123548 1.7249e-07 au
tp 2458359.027529242615
(2018-Aug-28.52752924)
5.6664e-05 TDB
node 36.7684148268366 1.8803e-05 deg
peri 316.7351755754952 2.2712e-05 deg
i 14.76001828207522 5.6069e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      8208 days (22.47 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48031  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:17:09  

Additional Information
 Jupiter MOID = 2.43217 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.345437516720472E-15 -1.132334462247044E-14 8.705346962434768E-13 -7.874823553224608E-15 8.240184321472336E-15 4.81356514344843E-15
q -1.132334462247044E-14 2.975448097355578E-14 -2.028233927278424E-12 2.064050806369099E-14 7.448883086496902E-16 -1.314127736739972E-14
tp 8.705346962434768E-13 -2.028233927278424E-12 3.210794700034342E-9 -2.59498739364131E-12 7.164052820556435E-10 -5.460860429322167E-12
node -7.874823553224608E-15 2.064050806369099E-14 -2.59498739364131E-12 3.535560474013216E-10 -3.415626976836088E-10 -2.04810228615481E-11
peri 8.240184321472336E-15 7.448883086496902E-16 7.164052820556435E-10 -3.415626976836088E-10 5.158297104724367E-10 1.831835686343177E-11
i 4.81356514344843E-15 -1.314127736739972E-14 -5.460860429322167E-12 -2.04810228615481E-11 1.831835686343177E-11 3.143743677472704E-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 15.9   n/a MPO503086  

215279 (2001 QN85)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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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
1983-Jul-30 17:31 00:02 Hygie 0.0342540708683515 0.0342515145351285 0.0342566298906842 6.06191540522489 6.06191521915317 2445546.229740690 2.28928225501987 887.127502796714 106.877749822065 85.4774948765744 47759.8637826347 T 21 CATAB v2.0f-lin.ifort 2020-May-21 09:17:32 2020-May-21 09:17
2034-Jun-14 18:09 00:03 Amphi 0.0354339778813435 0.0354148859191113 0.035453069856244 4.30862473849416 4.30862470083987 2464128.256167875 3.28058768603785 952.160846640881 151.820075719997 -2.00391106062746 5693.48417734081 T 21 CATAB v2.0f-lin.ifort 2020-May-21 09:17:32 2020-May-21 09:17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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