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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04986720957201057 3.106e-08  
a 2.793025259416352 1.1568e-08 au
q 2.653744883465117 8.9072e-08 au
i 4.256315330562121 3.7408e-06 deg
node 151.0414214433939 4.5707e-05 deg
peri 324.0049441897398 6.189e-05 deg
M 348.0559600937322 4.0414e-05 deg
tp 2459257.066520696100
(2021-Feb-11.56652070)
0.00019137 TDB
period 1704.946367427126
4.67
1.0592e-05
2.9e-08
d
yr
n .2111503369711643 1.3118e-09 deg/d
Q 2.932305635367586 1.2145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2016  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1991-09-10  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:45:30  

Additional Information
 Earth MOID = 1.67128 au 
 Jupiter MOID = 2.10137 au 
 T_jup = 3.322 
[ 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 13.8   n/a MPO302169  
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

[ show close-approach data ]
Alternate Designations
 1998 BL25 = 1991 RE41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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