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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06859505588050863 4.0016e-08  
a 2.281971271356125 1.1831e-08 au
q 2.125439324479736 8.8427e-08 au
i 3.229846906121458 4.5173e-06 deg
node 1.645808826847989 7.7182e-05 deg
peri 117.0363214318411 8.6496e-05 deg
M 110.4797020509728 3.8949e-05 deg
tp 2458614.094161964941
(2019-May-10.59416196)
0.00013508 TDB
period 1259.110036596955
3.45
9.7917e-06
2.681e-08
d
yr
n .2859162341148402 2.2235e-09 deg/d
Q 2.438503218232514 1.2642e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:19  

Additional Information
 Earth MOID = 1.14368 au 
 Jupiter MOID = 2.59532 au 
 T_jup = 3.599 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457397.5 (2016-Jan-10.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06875422744525594 4.0082e-08  
q 2.125384792033282 8.8607e-08 au
tp 2457356.891906101262
(2015-Nov-30.39190610)
0.00013127 TDB
node 1.664681445610537 7.7147e-05 deg
peri 117.6208772571236 8.6385e-05 deg
i 3.231028860766834 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:19  

Additional Information
 Jupiter MOID = 2.59532 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.606562695627425E-15 -3.526853632724115E-15 2.612764584719657E-13 -2.05557942617298E-14 7.078114063658771E-14 -1.411942286626275E-15
q -3.526853632724115E-15 7.851133314932771E-15 -1.803581466234733E-13 4.567760408821877E-14 -3.922127144942821E-14 3.300654164483496E-15
tp 2.612764584719657E-13 -1.803581466234733E-13 1.723076029103532E-8 7.907271189110763E-12 5.119239736490127E-9 -1.726709259084157E-12
node -2.05557942617298E-14 4.567760408821877E-14 7.907271189110763E-12 5.951641332218686E-9 -5.938947884105144E-9 1.650816566005918E-11
peri 7.078114063658771E-14 -3.922127144942821E-14 5.119239736490127E-9 -5.938947884105144E-9 7.462441645441065E-9 -1.697373207452674E-11
i -1.411942286626275E-15 3.300654164483496E-15 -1.726709259084157E-12 1.650816566005918E-11 -1.697373207452674E-11 2.040616519408969E-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 MPO471209  

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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