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16884 (1998 BL25)
Classification: Main-belt Asteroid          SPK-ID: 2016884
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04992579630250436 3.1033e-08  
a 2.793149226184011 1.1573e-08 au
q 2.653699026875051 8.8998e-08 au
i 4.256596355651479 3.7327e-06 deg
node 151.0393224314167 4.5433e-05 deg
peri 323.8833732236452 6.1581e-05 deg
M 29.55085123160249 4.0191e-05 deg
tp 2459256.538969992523
(2021-Feb-11.03896999)
0.00019044 TDB
period 1705.059878234829
4.67
1.0597e-05
2.901e-08
d
yr
n .2111362800775605 1.3123e-09 deg/d
Q 2.932599425492972 1.2151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2053  
   data-arc span      10833 days (29.66 yr)  
   first obs. used      1991-09-10  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52373  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:44:22  

Additional Information
 Earth MOID = 1.67179 au 
 Jupiter MOID = 2.10084 au 
 T_jup = 3.322 
[ 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 13.88   n/a MPCxxxxx  
diameter diameter 4.749 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16884 (1998 BL25)          Discovered 1998-Jan-28 by Kobayashi, T. at Oizumi
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BL25 = 1991 RE41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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