Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04986720957150621 3.106e-08  
a 2.793025259382121 1.1552e-08 au
q 2.653744883434002 8.9069e-08 au
i 4.256315341547769 3.737e-06 deg
node 151.0414216355196 4.5607e-05 deg
peri 324.0049439330206 6.178e-05 deg
M 348.0559601688248 4.0345e-05 deg
tp 2459257.066520339424
(2021-Feb-11.56652034)
0.00019104 TDB
period 1704.946367395783
4.67
1.0578e-05
2.896e-08
d
yr
n .2111503369750459 1.31e-09 deg/d
Q 2.93230563533024 1.2128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2024  
   data-arc span      10784 days (29.52 yr)  
   first obs. used      1991-09-10  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52408  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:24:20  

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 ]

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-18 21:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin