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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02500251721209185 5.3195e-08  
a 2.663052370233614 1.796e-08 au
q 2.596469357510146 1.4537e-07 au
i 3.297917397897424 6.0401e-06 deg
node 313.1351398635247 0.00012187 deg
peri 128.9352061607813 0.00023744 deg
M 173.3532894392845 0.0002006 deg
tp 2458236.140665258174
(2018-Apr-27.64066526)		 0.00088392 TDB
period 1587.332789571514
4.35		 1.6058e-05
4.396e-08		 d
yr
n .2267955417825009 2.2943e-09 deg/d
Q 2.729635382957082 1.8409e-08 au
   Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      8625 days (23.61 yr)  
   first obs. used      1995-08-22  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56475  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:26:11  

Additional Information
 Earth MOID = 1.61394 au 
 Jupiter MOID = 2.31731 au 
 T_jup = 3.382 
[ 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

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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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