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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07525834624890385 2.4743e-08  
a 2.889758319195824 1.3445e-08 au
q 2.672279887034135 7.6262e-08 au
i 11.62710377296804 1.3866e-06 deg
node 294.1357592106584 4.5251e-06 deg
peri 159.2833159556104 2.2009e-05 deg
M 265.8030749185288 2.2416e-05 deg
tp 2459669.988475616911
(2022-Mar-31.48847562)
0.00011276 TDB
period 1794.282043452117
4.91
1.2522e-05
3.428e-08
d
yr
n .2006373531484361 1.4003e-09 deg/d
Q 3.107236751357514 1.4457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2375  
   data-arc span      11090 days (30.36 yr)  
   first obs. used      1990-09-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43306  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:45:30  

Additional Information
 Earth MOID = 1.69198 au 
 Jupiter MOID = 2.03826 au 
 T_jup = 3.256 
[ 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 13.16   n/a E2021B10  
diameter diameter 15.548 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.992 h n/a LCDB (Rev. 2020-October); 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.]
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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