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120678 (1997 BB4)
Classification: Main-belt Asteroid          SPK-ID: 2120678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02422541666084321 5.256e-08  
a 2.664778755636599 1.8086e-08 au
q 2.600223379972339 1.4344e-07 au
i 3.298354553200513 6.0207e-06 deg
node 313.1284188109105 0.00012134 deg
peri 129.3832909541333 0.00024357 deg
M 218.202981775081 0.00020807 deg
tp 2459826.327669528060
(2022-Sep-03.82766953)
0.00091874 TDB
period 1588.876577592999
4.35
1.6175e-05
4.428e-08
d
yr
n .2265751821613272 2.3066e-09 deg/d
Q 2.729334131300859 1.8524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      8651 days (23.69 yr)  
   first obs. used      1995-08-22  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56476  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:55:32  

Additional Information
 Earth MOID = 1.61732 au 
 Jupiter MOID = 2.31412 au 
 T_jup = 3.381 
[ show covariance matrix ]

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 15.7   n/a MPO432707  

120678 (1997 BB4)          Discovered 1997-Jan-31 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 BB4 = 1995 QF15 = 2004 TZ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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