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249812 (2001 DW75)
Classification: Main-belt Asteroid          SPK-ID: 2249812
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 .08959073451787279 5.1138e-08  
a 2.389583384259956 1.5776e-08 au
q 2.175498853672402 1.2033e-07 au
i 9.406924036731885 5.5966e-06 deg
node 154.6225320922036 3.3762e-05 deg
peri 282.6432017342379 4.8764e-05 deg
M 146.498264644164 3.7044e-05 deg
tp 2458451.450258981100
(2018-Nov-28.95025898)
0.00013664 TDB
period 1349.216710838888
3.69
1.3361e-05
3.658e-08
d
yr
n .2668214802766314 2.6423e-09 deg/d
Q 2.603667914847509 1.7189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      7005 days (19.18 yr)  
   first obs. used      2001-02-19  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:47:17  

Additional Information
 Earth MOID = 1.2137 au 
 Jupiter MOID = 2.57874 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08904041992197124 5.0865e-08  
q 2.177454976958471 1.1945e-07 au
tp 2457103.923183990537
(2015-Mar-22.42318399)
0.00013334 TDB
node 154.6411439487255 3.3747e-05 deg
peri 283.2204168507703 4.8968e-05 deg
i 9.407524278173607 5.5959e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      7005 days (19.18 yr)  
   first obs. used      2001-02-19  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:47:17  

Additional Information
 Jupiter MOID = 2.57874 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.587264399856857E-15 -6.033804897430067E-15 -2.047245213726783E-12 3.931977259811011E-15 -6.54438701702436E-13 2.092262054039491E-15
q -6.033804897430067E-15 1.426927107706788E-14 5.415525828877931E-12 -8.299207119764661E-15 1.692995655196666E-12 -4.635509249400787E-15
tp -2.047245213726783E-12 5.415525828877931E-12 1.777856823816727E-8 6.329058321098905E-12 4.755910911167031E-9 1.656481895107215E-12
node 3.931977259811011E-15 -8.299207119764661E-15 6.329058321098905E-12 1.138884874622954E-9 -1.121810821227152E-9 8.604681895897688E-11
peri -6.54438701702436E-13 1.692995655196666E-12 4.755910911167031E-9 -1.121810821227152E-9 2.397837123238231E-9 -8.457621033675177E-11
i 2.092262054039491E-15 -4.635509249400787E-15 1.656481895107215E-12 8.604681895897688E-11 -8.457621033675177E-11 3.131380085698165E-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 16.3   n/a MPO454852  

249812 (2001 DW75)          Discovered 2001-Feb-20 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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