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185569 (2008 AS77)
Classification: Main-belt Asteroid          SPK-ID: 2185569
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06464656816905573 6.9358e-08  
a 2.988742225545572 3.9058e-08 au
q 2.795530297522105 2.2197e-07 au
i 8.291209500392167 8.0674e-06 deg
node 318.0854935688423 4.8026e-05 deg
peri 332.3183802963122 7.7307e-05 deg
M 334.9153211656491 6.0925e-05 deg
tp 2459132.003454097057
(2020-Oct-09.50345410)
0.00031998 TDB
period 1887.257309035648
5.17
3.6995e-05
1.013e-07
d
yr
n .1907530034597948 3.7392e-09 deg/d
Q 3.181954153569039 4.1583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2000-08-30  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55838  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:09:30  

Additional Information
 Earth MOID = 1.78257 au 
 Jupiter MOID = 2.01516 au 
 T_jup = 3.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456921.5 (2014-Sep-21.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06281952387519994 6.9638e-08  
q 2.799301484036004 2.2208e-07 au
tp 2457250.204011707033
(2015-Aug-15.70401171)
0.00032074 TDB
node 318.1290548263207 4.8053e-05 deg
peri 333.1288727999989 7.8497e-05 deg
i 8.289621266052672 8.0661e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2000-08-30  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55838  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:09:30  

Additional Information
 Jupiter MOID = 2.01516 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.849403089609447E-15 -1.526765897397103E-14 4.165304894222018E-12 -4.887703930516235E-14 9.361935558714838E-13 -7.958750681117967E-15
q -1.526765897397103E-14 4.931779748000299E-14 -1.09107989066981E-11 1.678759661699269E-13 -2.581735607125093E-12 2.94304161643009E-14
tp 4.165304894222018E-12 -1.09107989066981E-11 1.028713251016672E-7 -4.779590815616582E-11 1.995560758008209E-8 -2.146316399210879E-11
node -4.887703930516235E-14 1.678759661699269E-13 -4.779590815616582E-11 2.30910631529871E-9 -2.293456710805299E-9 4.929457747827731E-11
peri 9.361935558714838E-13 -2.581735607125093E-12 1.995560758008209E-8 -2.293456710805299E-9 6.161710063085984E-9 -5.298437638678202E-11
i -7.958750681117967E-15 2.94304161643009E-14 -2.146316399210879E-11 4.929457747827731E-11 -5.298437638678202E-11 6.506217448294384E-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 15.6   n/a MPO390954  

185569 (2008 AS77)          Discovered 2008-Jan-12 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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