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85564 (1998 BU7)
Classification: Main-belt Asteroid          SPK-ID: 2085564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2740687136522171 4.8069e-08  
a 2.570143696872572 1.2846e-08 au
q 1.865747719969353 1.2731e-07 au
i 13.22028539203518 4.6107e-06 deg
node 79.83249797260052 2.1926e-05 deg
peri 303.7615980455425 2.4015e-05 deg
M 292.8904142894411 1.5484e-05 deg
tp 2459677.054082043809
(2022-Apr-07.55408204)
6.6553e-05 TDB
period 1504.993190859175
4.12
1.1283e-05
3.089e-08
d
yr
n .2392037400478086 1.7934e-09 deg/d
Q 3.274539673775792 1.6367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      8643 days (23.66 yr)  
   first obs. used      1997-12-04  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:10:00  

Additional Information
 Earth MOID = .905602 au 
 Jupiter MOID = 2.26979 au 
 T_jup = 3.341 
[ 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 14.98   n/a MPO637174  

85564 (1998 BU7)          Discovered 1998-Jan-17 by Osservatorio San Vittore at Bologna
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 BU7 = 2001 QN90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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