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305626 (2009 AH41)
Classification: Main-belt Asteroid          SPK-ID: 2305626
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06826135196843508 3.9996e-08  
a 2.282946529202402 1.1842e-08 au
q 2.1271095126474 8.8338e-08 au
i 3.229770143238752 4.5172e-06 deg
node 1.624050649457585 7.7167e-05 deg
peri 117.3380517281571 8.6583e-05 deg
M 167.3563520409199 3.9336e-05 deg
tp 2458614.791217342110
(2019-May-11.29121734)
0.0001359 TDB
period 1259.917291369285
3.45
9.8031e-06
2.684e-08
d
yr
n .2857330417370096 2.2232e-09 deg/d
Q 2.438783545757404 1.265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      7743 days (21.20 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:55:54  

Additional Information
 Earth MOID = 1.14522 au 
 Jupiter MOID = 2.59344 au 
 T_jup = 3.599 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457397.5 (2016-Jan-10.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06875422813541909 4.0082e-08  
q 2.125384790871482 8.8607e-08 au
tp 2457356.891906791151
(2015-Nov-30.39190679)
0.00013127 TDB
node 1.664681390958561 7.7147e-05 deg
peri 117.6208775246396 8.6385e-05 deg
i 3.2310288736863 4.5173e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      7743 days (21.20 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:55:54  

Additional Information
 Jupiter MOID = 2.59344 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.606562979677129E-15 -3.526854334957272E-15 2.612745954363368E-13 -2.055581047913682E-14 7.078052440864916E-14 -1.411942154737296E-15
q -3.526854334957272E-15 7.851134500653228E-15 -1.80355641293819E-13 4.567762988772045E-14 -3.922046203888938E-14 3.300653581869529E-15
tp 2.612745954363368E-13 -1.80355641293819E-13 1.723075495027449E-8 7.907267295086051E-12 5.119237853069796E-9 -1.726707196596969E-12
node -2.055581047913682E-14 4.567762988772045E-14 7.907267295086051E-12 5.951641467379142E-9 -5.938948020380677E-9 1.650816126085156E-11
peri 7.078052440864916E-14 -3.922046203888938E-14 5.119237853069796E-9 -5.938948020380677E-9 7.462441113477068E-9 -1.697372707487048E-11
i -1.411942154737296E-15 3.300653581869529E-15 -1.726707196596969E-12 1.650816126085156E-11 -1.697372707487048E-11 2.040616479361811E-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 17.96   n/a E2021B25  

305626 (2009 AH41)          Discovered 2009-Jan-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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