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JPL Small-Body Database Browser
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27954 (1997 QB4)
Classification: Main-belt Asteroid          SPK-ID: 2027954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423377096882061 3.8567e-08  
a 2.539563693444146 1.183e-08 au
q 2.178088013711985 9.767e-08 au
i 15.38144720601895 4.3551e-06 deg
node 353.2650565797632 1.6163e-05 deg
peri 359.8628199668437 2.2758e-05 deg
M 118.0481672878991 1.807e-05 deg
tp 2458115.776763249065
(2017-Dec-28.27676325)
7.2854e-05 TDB
period 1478.213251754772
4.05
1.0329e-05
2.828e-08
d
yr
n .2435372565985643 1.7017e-09 deg/d
Q 2.901039373176307 1.3514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1014  
   data-arc span      9302 days (25.47 yr)  
   first obs. used      1993-09-14  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55324  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:24  

Additional Information
 Earth MOID = 1.17206 au 
 Jupiter MOID = 2.53067 au 
 T_jup = 3.382 
[ 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 14.5   n/a MPO319430  

27954 (1997 QB4)          Discovered 1997-Aug-27 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 QB4 = 1993 RM11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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