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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793551564086922 6.5017e-08  
a 2.615495252301406 1.9011e-08 au
q 2.146392692238696 1.7055e-07 au
i 14.76991591936156 5.5974e-06 deg
node 36.7350217009915 1.8653e-05 deg
peri 317.2066632217789 2.248e-05 deg
M 195.6503277609572 1.3798e-05 deg
tp 2459905.835385868996
(2022-Nov-22.33538587)
6.2765e-05 TDB
period 1545.003013717708
4.23
1.6845e-05
4.612e-08
d
yr
n .2330092542238735 2.5404e-09 deg/d
Q 3.084597812364116 2.242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      8459 days (23.16 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:45:56  

Additional Information
 Earth MOID = 1.16574 au 
 Jupiter MOID = 2.43319 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457697.5 (2016-Nov-05.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783721187752724 6.5117e-08  
q 2.151254273377512 1.7052e-07 au
tp 2458359.331960542685
(2018-Aug-28.83196054)
5.6519e-05 TDB
node 36.76090715579434 1.8658e-05 deg
peri 316.803991156272 2.2514e-05 deg
i 14.76343015888361 5.5953e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      8459 days (23.16 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:45:56  

Additional Information
 Jupiter MOID = 2.43319 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.240178304302431E-15 -1.105657743510837E-14 9.101457261456141E-13 -7.074346277137064E-15 2.762860214312873E-14 4.673087866261712E-15
q -1.105657743510837E-14 2.90766704760142E-14 -2.130571812557476E-12 1.850578964798106E-14 -4.862115836361627E-14 -1.265390337127117E-14
tp 9.101457261456141E-13 -2.130571812557476E-12 3.19442287869667E-9 -2.510880208771264E-12 7.086845045728747E-10 -5.27555716075606E-12
node -7.074346277137064E-15 1.850578964798106E-14 -2.510880208771264E-12 3.48135072703811E-10 -3.362738153152098E-10 -2.130660330073653E-11
peri 2.762860214312873E-14 -4.862115836361627E-14 7.086845045728747E-10 -3.362738153152098E-10 5.068591160621405E-10 1.917091115117437E-11
i 4.673087866261712E-15 -1.265390337127117E-14 -5.27555716075606E-12 -2.130660330073653E-11 1.917091115117437E-11 3.130787667518071E-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 15.94   n/a E2021B55  
rotation period rot_per 20.682 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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