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215246 (2001 GW)
Classification: Main-belt Asteroid          SPK-ID: 2215246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035411459992417 8.5881e-08  
a 2.549653646728844 1.9887e-08 au
q 2.285659586245394 2.2579e-07 au
i 2.724370958814385 9.2496e-06 deg
node 34.14826195819187 0.00011436 deg
peri 96.47344553969165 0.00012836 deg
M 309.8535477963484 5.4596e-05 deg
tp 2459207.637114215840
(2020-Dec-24.13711422)
0.00022543 TDB
period 1487.031641139156
4.07
1.7398e-05
4.763e-08
d
yr
n .2420930328854457 2.8324e-09 deg/d
Q 2.813647707212295 2.1946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      9681 days (26.51 yr)  
   first obs. used      1993-04-26  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .568  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:57:33  

Additional Information
 Earth MOID = 1.30223 au 
 Jupiter MOID = 2.21823 au 
 T_jup = 3.432 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457209.5 (2015-Jul-06.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022971102266439 8.7074e-08  
q 2.289247794071412 2.2884e-07 au
tp 2457721.829881282866
(2016-Nov-29.32988128)
0.00022933 TDB
node 34.16576463210912 0.00011426 deg
peri 96.75193847469036 0.00012852 deg
i 2.726289272114879 9.254e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      9681 days (26.51 yr)  
   first obs. used      1993-04-26  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .568  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:57:33  

Additional Information
 Jupiter MOID = 2.21823 au 
 T_jup = 3.432 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.5818969701797E-15 -1.987255481235961E-14 1.643047228852106E-11 6.20688863588741E-14 4.358265619108564E-12 -1.541581335168563E-14
q -1.987255481235961E-14 5.236866016787188E-14 -4.234779648130109E-11 -1.632700506835958E-13 -1.127280774495654E-11 4.060321468792487E-14
tp 1.643047228852106E-11 -4.234779648130109E-11 5.259010701800422E-8 1.822158753815175E-10 1.350932576180663E-8 -4.046807163453786E-11
node 6.20688863588741E-14 -1.632700506835958E-13 1.822158753815175E-10 1.305564089744402E-8 -1.299282496802502E-8 -6.728735088073843E-10
peri 4.358265619108564E-12 -1.127280774495654E-11 1.350932576180663E-8 -1.299282496802502E-8 1.651855543724776E-8 6.614096483076038E-10
i -1.541581335168563E-14 4.060321468792487E-14 -4.046807163453786E-11 -6.728735088073843E-10 6.614096483076038E-10 8.563711808617792E-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 17.1   n/a MPO494186  

215246 (2001 GW)          Discovered 2001-Apr-13 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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