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249850 (2001 QC17)
Classification: Mars-crossing Asteroid          SPK-ID: 2249850
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3821186394674687 4.3304e-08  
a 2.682258075248256 1.4055e-08 au
q 1.657317268833761 1.1704e-07 au
i 9.576966444996247 7.2018e-06 deg
node 133.2579602959115 3.3566e-05 deg
peri 245.7455270675426 3.543e-05 deg
M 348.1627233169737 1.3222e-05 deg
tp 2458653.259244408018
(2019-Jun-18.75924441)
5.9212e-05 TDB
period 1604.535274073749
4.39
1.2611e-05
3.453e-08
d
yr
n .2243640297704377 1.7635e-09 deg/d
Q 3.70719888166275 1.9425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6748 days (18.48 yr)  
   first obs. used      2001-06-15  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59253  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:45:46  

Additional Information
 Earth MOID = .685429 au 
 Jupiter MOID = 1.84412 au 
 T_jup = 3.248 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456920.5 (2014-Sep-20.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3818827639409463 4.2889e-08  
q 1.658293340022173 1.1606e-07 au
tp 2457040.496456721115
(2015-Jan-17.99645672)
5.0004e-05 TDB
node 133.9402489277047 3.3274e-05 deg
peri 244.2051852648944 3.5253e-05 deg
i 9.621152583129737 7.2249e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6748 days (18.48 yr)  
   first obs. used      2001-06-15  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59253  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:45:46  

Additional Information
 Jupiter MOID = 1.84412 au 
 T_jup = 3.248 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.839506813269055E-15 -4.96083060169858E-15 -2.773862669892351E-13 5.068465820783737E-15 -5.536819407462022E-15 -3.716779611811822E-15
q -4.96083060169858E-15 1.347064612543012E-14 1.085758376999417E-12 -1.286985098333545E-14 8.73232702815368E-14 1.064005345923672E-14
tp -2.773862669892351E-13 1.085758376999417E-12 2.500359052789607E-9 2.447077135564925E-12 6.036745749841312E-10 1.034484783415763E-12
node 5.068465820783737E-15 -1.286985098333545E-14 2.447077135564925E-12 1.107153063923674E-9 -1.089225145719321E-9 -5.128998323468797E-11
peri -5.536819407462022E-15 8.73232702815368E-14 6.036745749841312E-10 -1.089225145719321E-9 1.24276104389366E-9 5.050146270380678E-11
i -3.716779611811822E-15 1.064005345923672E-14 1.034484783415763E-12 -5.128998323468797E-11 5.050146270380678E-11 5.219939105049368E-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 16.2   n/a MPO450108  

249850 (2001 QC17)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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