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15953 (1998 BD8)
Classification: Main-belt Asteroid          SPK-ID: 2015953
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908503505075338 1.7719e-08  
a 2.622236603408363 1.1326e-08 au
q 2.121781828534192 4.8967e-08 au
i 12.91366878633885 1.3584e-06 deg
node 327.1681072639672 3.0819e-06 deg
peri 48.37789070438636 7.3824e-06 deg
M 242.219981862004 8.5163e-06 deg
tp 2459707.929084233868
(2022-May-08.42908423)
3.8494e-05 TDB
period 1550.980151065722
4.25
1.0049e-05
2.751e-08
d
yr
n .2321112876606667 1.5038e-09 deg/d
Q 3.122691378282534 1.3488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2200  
   data-arc span      13492 days (36.94 yr)  
   first obs. used      1983-08-13  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42192  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:13:18  

Additional Information
 Earth MOID = 1.14212 au 
 Jupiter MOID = 2.42752 au 
 T_jup = 3.343 
[ 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 13.03   n/a E2021B10  
diameter diameter 6.680 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.251   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

15953 (1998 BD8)          Discovered 1998-Jan-25 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BD8 = 1979 SM12 = 1983 PS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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