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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 
[ show covariance matrix ]

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

[ 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
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 22 CATAB v2.0f-lin.ifort 2021-Feb-24 12:45:57 2021-Feb-24 12:45
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 22 CATAB v2.0f-lin.ifort 2021-Feb-24 12:45:57 2021-Feb-24 12:45
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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