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305591 (2008 YA88)
Classification: Main-belt Asteroid          SPK-ID: 2305591
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1380373488550539 4.8087e-08  
a 2.212344368289835 1.5997e-08 au
q 1.906958216936697 1.0312e-07 au
i 7.568326767867729 5.5638e-06 deg
node 107.611024746773 4.6622e-05 deg
peri 309.4734773109757 5.5405e-05 deg
M 203.9772294159226 3.0395e-05 deg
tp 2459521.410372698725
(2021-Nov-02.91037270)
0.00010461 TDB
period 1201.925420690349
3.29
1.3036e-05
3.569e-08
d
yr
n .2995194159328348 3.2486e-09 deg/d
Q 2.517730519642973 1.8205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6378 days (17.46 yr)  
   first obs. used      2001-10-15  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:11  

Additional Information
 Earth MOID = .929702 au 
 Jupiter MOID = 2.78782 au 
 T_jup = 3.632 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457013.5 (2014-Dec-22.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376254252777519 4.7899e-08  
q 1.907599640714636 1.0245e-07 au
tp 2457118.377985109103
(2015-Apr-05.87798511)
9.3013e-05 TDB
node 107.6597896917857 4.6612e-05 deg
peri 309.5398297146789 5.5468e-05 deg
i 7.569239483557093 5.5653e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6378 days (17.46 yr)  
   first obs. used      2001-10-15  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:11  

Additional Information
 Jupiter MOID = 2.78782 au 
 T_jup = 3.632 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.294338485189512E-15 -4.866404859807859E-15 -7.733961761634617E-13 -3.630320318941107E-14 -2.863799678724002E-13 -5.414275422086592E-15
q -4.866404859807859E-15 1.049577443970466E-14 2.151934428038181E-12 7.38217302751018E-14 7.654535463431482E-13 1.206997149242897E-14
tp -7.733961761634617E-13 2.151934428038181E-12 8.65147964803484E-9 -1.171702907541908E-11 2.832527146859377E-9 7.635810537338764E-12
node -3.630320318941107E-14 7.38217302751018E-14 -1.171702907541908E-11 2.172647516080012E-9 -2.155167772186743E-9 7.980519879011853E-11
peri -2.863799678724002E-13 7.654535463431482E-13 2.832527146859377E-9 -2.155167772186743E-9 3.076722247121273E-9 -7.641489166632861E-11
i -5.414275422086592E-15 1.206997149242897E-14 7.635810537338764E-12 7.980519879011853E-11 -7.641489166632861E-11 3.097234203464642E-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 17.3   n/a MPO413264  

305591 (2008 YA88)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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