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16885 (1998 BX25)
Classification: Main-belt Asteroid          SPK-ID: 2016885
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .075317201448277 6.012e-08  
a 2.891644850936204 2.788e-08 au
q 2.673854253181369 1.7621e-07 au
i 11.60407244313875 7.5622e-06 deg
node 294.2588825966963 2.8907e-05 deg
peri 156.1253878905793 5.8613e-05 deg
M 268.2789970306384 5.4878e-05 deg
tp 2457858.095926354838
(2017-Apr-14.59592635)
0.00027724 JED
period 1796.039381980694
4.92
2.5975e-05
7.112e-08
d
yr
n .2004410391062737 2.8988e-09 deg/d
Q 3.109435448691038 2.998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      9222 days (25.25 yr)  
   first obs. used      1990-09-09  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5052  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:35:10  

Additional Information
 Earth MOID = 1.69432 au 
 Jupiter MOID = 2.05103 au 
 T_jup = 3.256 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO299084  
rotation period rot_per 4.9925 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

16885 (1998 BX25)          Discovered 1998-Jan-25 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BX25 = 1990 RB18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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