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180911 (2005 KN11)
Classification: Main-belt Asteroid          SPK-ID: 2180911
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839435810544459 3.5676e-08  
a 2.352143047731529 1.366e-08 au
q 1.919481432379473 8.3067e-08 au
i 9.355370139012086 4.0172e-06 deg
node 269.0771842095125 3.2616e-05 deg
peri 342.8746326342656 3.6115e-05 deg
M 126.1699258779964 1.742e-05 deg
tp 2458738.706974589692
(2019-Sep-12.20697459)
6.1951e-05 TDB
period 1317.631662147971
3.61
1.1478e-05
3.143e-08
d
yr
n .2732174782542313 2.38e-09 deg/d
Q 2.784804663083585 1.6173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8192 days (22.43 yr)  
   first obs. used      1998-08-02  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:27  

Additional Information
 Earth MOID = .905227 au 
 Jupiter MOID = 2.2818 au 
 T_jup = 3.516 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457937.5 (2017-Jul-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835687534282095 3.5706e-08  
q 1.921091291090818 8.3143e-08 au
tp 2457420.796444501357
(2016-Feb-02.29644450)
5.8244e-05 TDB
node 269.0821353800503 3.2619e-05 deg
peri 342.9846764827678 3.6127e-05 deg
i 9.35350118846973 4.0166e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8192 days (22.43 yr)  
   first obs. used      1998-08-02  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:27  

Additional Information
 Jupiter MOID = 2.2818 au 
 T_jup = 3.516 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.27488412443471E-15 -2.942320771545765E-15 -3.338681958491364E-13 -1.07802225336561E-15 -1.025476066895989E-13 1.28530309047934E-15
q -2.942320771545765E-15 6.91279780927678E-15 9.458657413538422E-13 3.46683128327128E-15 2.938706938443134E-13 -2.714788130225164E-15
tp -3.338681958491364E-13 9.458657413538422E-13 3.392307860183378E-9 1.213891548327917E-11 9.33982113423009E-10 -2.040359106786306E-13
node -1.07802225336561E-15 3.46683128327128E-15 1.213891548327917E-11 1.063970999827276E-9 -1.046630200983952E-9 -2.473340498291436E-12
peri -1.025476066895989E-13 2.938706938443134E-13 9.33982113423009E-10 -1.046630200983952E-9 1.305155158472964E-9 2.417284641955897E-12
i 1.28530309047934E-15 -2.714788130225164E-15 -2.040359106786306E-13 -2.473340498291436E-12 2.417284641955897E-12 1.613342046762845E-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 16.39   n/a E2021B55  
rotation period rot_per 60.7449 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.]

180911 (2005 KN11)          Discovered 2005-May-30 by Siding Spring Survey at Siding Spring
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ 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
2135-Nov-29 08:48 < 00:01 Eunom 0.020902628642543 0.0208635733789826 0.0209416990240915 6.43369313147795 6.43369302709426 2501184.866983250 0.430849547342215 2139.78724362079 111.091005265648 -24.537570586644 11759.109858931 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 21:28:28 2021-Apr-13 21:28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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