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305615 (2009 AL1)
Classification: Main-belt Asteroid          SPK-ID: 2305615
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05308660439486479 5.2262e-08  
a 2.28473190534308 1.8027e-08 au
q 2.163443246535806 1.2193e-07 au
i 7.267623712019997 5.8946e-06 deg
node 111.3285582789298 4.0183e-05 deg
peri 7.269274324471017 8.066e-05 deg
M 96.03951477291513 6.688e-05 deg
tp 2458663.989396859208
(2019-Jun-29.48939686)
0.00023374 TDB
period 1261.395555955578
3.45
1.4929e-05
4.087e-08
d
yr
n .2853981832267355 3.3778e-09 deg/d
Q 2.406020564150354 1.8984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      6706 days (18.36 yr)  
   first obs. used      2001-12-17  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53782  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:00:30  

Additional Information
 Earth MOID = 1.17984 au 
 Jupiter MOID = 2.63028 au 
 T_jup = 3.590 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO376976  

305615 (2009 AL1)          Discovered 2009-Jan-02 by Shandong University at Weihai
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 AL1 = 2001 YZ100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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