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146783 (2001 XR241)
Classification: Main-belt Asteroid          SPK-ID: 2146783
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02216209212700531 5.6616e-08  
a 2.864282489515032 2.5912e-08 au
q 2.800803997104632 1.4918e-07 au
i 3.2662859045965 4.6626e-06 deg
node 90.87394487560771 0.00011659 deg
peri 174.5302686941481 0.00020066 deg
M 91.4174525854298 0.0001627 deg
tp 2458550.876695355913
(2019-Mar-08.37669536)
0.00080182 TDB
period 1770.607089719642
4.85
2.4027e-05
6.578e-08
d
yr
n .2033200940458238 2.7591e-09 deg/d
Q 2.927760981925432 2.6487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      2001-11-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56142  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:07:11  

Additional Information
 Earth MOID = 1.78486 au 
 Jupiter MOID = 2.06803 au 
 T_jup = 3.298 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457763.5 (2017-Jan-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02313553979895926 5.4013e-08  
q 2.798451327731931 1.4228e-07 au
tp 2458579.193170459023
(2019-Apr-05.69317046)
0.00079644 TDB
node 90.90414702092068 0.00011672 deg
peri 180.4968259810644 0.00020018 deg
i 3.265014350338022 4.6621e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      2001-11-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56142  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:07:11  

Additional Information
 Jupiter MOID = 2.06803 au 
 T_jup = 3.298 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.917445825860593E-15 -7.599317042218541E-15 -1.303988425086726E-11 3.81318980108454E-14 -2.866193244934515E-12 1.61452263284236E-15
q -7.599317042218541E-15 2.024268115921674E-14 3.075965442261706E-11 -9.572668321655482E-14 6.776315140109311E-12 -3.81495573200629E-15
tp -1.303988425086726E-11 3.075965442261706E-11 6.343095066300687E-7 -6.219459390081474E-10 1.295570622055492E-7 -3.07658497063954E-11
node 3.81318980108454E-14 -9.572668321655482E-14 -6.219459390081474E-10 1.362408415011505E-8 -1.372984175023955E-8 -1.685295574010273E-10
peri -2.866193244934515E-12 6.776315140109311E-12 1.295570622055492E-7 -1.372984175023955E-8 4.007306888684325E-8 1.619178305691025E-10
i 1.61452263284236E-15 -3.81495573200629E-15 -3.07658497063954E-11 -1.685295574010273E-10 1.619178305691025E-10 2.173492245900112E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO412893  

146783 (2001 XR241)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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