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441273 (2007 WF1)
Classification: Main-belt Asteroid          SPK-ID: 2441273
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377860296106093 2.6984e-07  
a 2.658304045128155 1.1498e-07 au
q 2.292026885252124 8.0819e-07 au
i 1.140437854958325 9.6983e-06 deg
node 265.90276389 0.00063003 deg
peri 79.86371219430515 0.00063524 deg
M 14.21064036659709 9.4818e-05 deg
tp 2458938.009132576541
(2020-Mar-29.50913258)
0.00041353 TDB
period 1583.089269173616
4.33
0.00010271
2.812e-07
d
yr
n .2274034743397147 1.4753e-08 deg/d
Q 3.024581205004185 1.3082e-07 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      3362 days (9.20 yr)  
   first obs. used      2007-10-11  
   last obs. used      2016-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65216  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:40:01  

Additional Information
 Earth MOID = 1.2851 au 
 Jupiter MOID = 2.3757 au 
 T_jup = 3.373 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456830.5 (2014-Jun-22.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399064528627787 2.6701e-07  
q 2.285837565326093 8.0147e-07 au
tp 2457356.344990186751
(2015-Nov-29.84499019)
0.00032653 TDB
node 266.0062193333 0.00063107 deg
peri 80.24954459627573 0.00063618 deg
i 1.138796854826513 9.6917e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      3362 days (9.20 yr)  
   first obs. used      2007-10-11  
   last obs. used      2016-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65216  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:40:01  

Additional Information
 Jupiter MOID = 2.3757 au 
 T_jup = 3.373 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.129294199063724E-14 -2.137073341280527E-13 -7.429285326221379E-11 2.683532862975462E-13 -1.683872653978975E-11 -7.348866909629459E-14
q -2.137073341280527E-13 6.423565459423562E-13 2.219110293214405E-10 -7.479545175616209E-13 5.002801799037789E-11 2.21964151226375E-13
tp -7.429285326221379E-11 2.219110293214405E-10 1.066245661939861E-7 -7.260543878551898E-10 2.628379962030707E-8 7.510280024242495E-11
node 2.683532862975462E-13 -7.479545175616209E-13 -7.260543878551898E-10 3.982508490057686E-7 -3.983631434114022E-7 4.278691737978617E-9
peri -1.683872653978975E-11 5.002801799037789E-11 2.628379962030707E-8 -3.983631434114022E-7 4.04727862242447E-7 -4.261364230790469E-9
i -7.348866909629459E-14 2.21964151226375E-13 7.510280024242495E-11 4.278691737978617E-9 -4.261364230790469E-9 9.392838025180903E-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 17.8   n/a MPO349178  

441273 (2007 WF1)          Discovered 2007-Oct-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2007 WF1 = 2011 SK193 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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