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305695 (2009 BT146)
Classification: Main-belt Asteroid          SPK-ID: 2305695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .097038674500047 5.369e-08  
a 2.350780050319701 1.6084e-08 au
q 2.122663470195523 1.2314e-07 au
i 4.208795911668985 6.2558e-06 deg
node 186.7179465630868 6.6096e-05 deg
peri 298.0559070386988 7.2865e-05 deg
M 184.1462270759704 3.2254e-05 deg
tp 2460039.580900579629
(2023-Apr-05.08090058)
0.00012137 TDB
period 1316.486535143494
3.60
1.3511e-05
3.699e-08
d
yr
n .2734551325743418 2.8065e-09 deg/d
Q 2.578896630443878 1.7645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      7066 days (19.35 yr)  
   first obs. used      2002-04-05  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 04:08:41  

Additional Information
 Earth MOID = 1.14226 au 
 Jupiter MOID = 2.46657 au 
 T_jup = 3.548 
[ 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 17.74   n/a E2021B25  

305695 (2009 BT146)          Discovered 2009-Jan-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 BT146 = 2002 GJ178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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