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JPL Small-Body Database Browser
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305291 (2008 AH5)
Classification: Main-belt Asteroid          SPK-ID: 2305291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06319974445098771 8.936e-08  
a 3.120555066645982 4.0216e-08 au
q 2.923336783888721 2.8736e-07 au
i 7.875726816704973 7.4999e-06 deg
node 309.4962804153075 5.0048e-05 deg
peri 199.2990972758437 8.425e-05 deg
M .9627492907828001 6.3923e-05 deg
tp 2458595.115357067520
(2019-Apr-21.61535707)
0.00035751 TDB
period 2013.474820757093
5.51
3.8922e-05
1.066e-07
d
yr
n .1787953821367557 3.4563e-09 deg/d
Q 3.317773349403243 4.2757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      13898 days (38.05 yr)  
   first obs. used      1981-03-07  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54626  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:09:51  

Additional Information
 Earth MOID = 1.93695 au 
 Jupiter MOID = 1.71733 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457214.5 (2015-Jul-11.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06411209585088437 8.899e-08  
q 2.920766016211404 2.8606e-07 au
tp 2456577.539573547818
(2013-Oct-12.03957355)
0.00035083 TDB
node 309.5258990552773 5.0042e-05 deg
peri 198.7355799948337 8.3752e-05 deg
i 7.876286179206864 7.5004e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      13898 days (38.05 yr)  
   first obs. used      1981-03-07  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54626  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:09:51  

Additional Information
 Jupiter MOID = 1.71733 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.919241489280318E-15 -2.524233276897737E-14 1.398494843702666E-11 2.095594754812572E-14 2.861619860196228E-12 -1.808757836348139E-15
q -2.524233276897737E-14 8.18318403565441E-14 -4.330353671546493E-11 -5.54842698977875E-14 -8.805271496561367E-12 7.127107710247977E-15
tp 1.398494843702666E-11 -4.330353671546493E-11 1.230813148896047E-7 1.444634295042537E-10 2.359956490509908E-8 2.759060497509775E-11
node 2.095594754812572E-14 -5.54842698977875E-14 1.444634295042537E-10 2.504224804520713E-9 -2.451087852114865E-9 8.120369557059394E-11
peri 2.861619860196228E-12 -8.805271496561367E-12 2.359956490509908E-8 -2.451087852114865E-9 7.0144583124635E-9 -7.53212226342678E-11
i -1.808757836348139E-15 7.127107710247977E-15 2.759060497509775E-11 8.120369557059394E-11 -7.53212226342678E-11 5.625567269410744E-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 15.4   n/a MPO433966  

305291 (2008 AH5)          Discovered 2008-Jan-09 by LUSS at Lulin
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 AH5 = 1981 EZ36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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