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85868 (1999 BZ9)
Classification: Main-belt Asteroid          SPK-ID: 2085868
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04477191496320145 4.4706e-08  
a 2.540567107815948 1.0684e-08 au
q 2.426821053306506 1.1057e-07 au
i .9728757559262038 3.8978e-06 deg
node 36.11907672442946 0.00025772 deg
peri 96.48205958558222 0.00026121 deg
M 98.88462265500942 4.3064e-05 deg
tp 2458594.224444011800
(2019-Apr-20.72444401)
0.00017648 TDB
period 1479.089429971573
4.05
9.3298e-06
2.554e-08
d
yr
n .2433929907854989 1.5353e-09 deg/d
Q 2.654313162325391 1.1162e-08 au
  Orbit Determination Parameters
   # obs. used (total)      994  
   data-arc span      9718 days (26.61 yr)  
   first obs. used      1993-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56603  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:40:35  

Additional Information
 Earth MOID = 1.44119 au 
 Jupiter MOID = 2.34312 au 
 T_jup = 3.444 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456514.5 (2013-Aug-10.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04524846425364128 4.4898e-08  
q 2.425520775476924 1.1121e-07 au
tp 2457120.797766765057
(2015-Apr-08.29776677)
0.00017209 TDB
node 36.13282023791179 0.0002576 deg
peri 97.94299157952437 0.00026097 deg
i .9734877467466525 3.897e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      994  
   data-arc span      9718 days (26.61 yr)  
   first obs. used      1993-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56603  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:40:35  

Additional Information
 Jupiter MOID = 2.34312 au 
 T_jup = 3.444 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.015846273475128E-15 -4.974069109050362E-15 9.481141804900283E-13 3.632618131792771E-14 2.282724633498769E-13 -4.832733247072612E-16
q -4.974069109050362E-15 1.236737426924529E-14 -2.250141933764796E-12 -9.038236140398485E-14 -5.503404358687207E-13 1.208559378237616E-15
tp 9.481141804900283E-13 -2.250141933764796E-12 2.961499228926002E-8 3.256574321084259E-11 7.217693748999771E-9 1.114189724180624E-12
node 3.632618131792771E-14 -9.038236140398485E-14 3.256574321084259E-11 6.635545926363614E-8 -6.633696781667E-8 -1.71708965385391E-10
peri 2.282724633498769E-13 -5.503404358687207E-13 7.217693748999771E-9 -6.633696781667E-8 6.810355148087397E-8 1.719468812844336E-10
i -4.832733247072612E-16 1.208559378237616E-15 1.114189724180624E-12 -1.71708965385391E-10 1.719468812844336E-10 1.518630791428427E-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 MPO267963  

85868 (1999 BZ9)          Discovered 1999-Jan-23 by Korlevic, K. at Visnjan
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 BZ9 = 2001 SD26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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