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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908506851480339 1.7368e-08  
a 2.623104194375769 1.0888e-08 au
q 2.122482961664472 4.8538e-08 au
i 12.91381152691134 1.3441e-06 deg
node 327.1665912184122 3.0657e-06 deg
peri 48.27738431463735 7.3624e-06 deg
M 287.816720368312 8.4224e-06 deg
tp 2459707.640001290300
(2022-May-08.14000129)
3.7331e-05 TDB
period 1551.749948686678
4.25
9.6611e-06
2.645e-08
d
yr
n .231996141069433 1.4444e-09 deg/d
Q 3.123725427087066 1.2965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2350  
   data-arc span      13876 days (37.99 yr)  
   first obs. used      1983-08-13  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:33:45  

Additional Information
 Earth MOID = 1.1434 au 
 Jupiter MOID = 2.4265 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896209470792142 1.7271e-08  
q 2.126457490030374 4.8133e-08 au
tp 2456605.420853936910
(2013-Nov-08.92085394)
3.1439e-05 TDB
node 327.1926034959812 3.066e-06 deg
peri 48.5404194024048 7.4162e-06 deg
i 12.91252738019137 1.344e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2350  
   data-arc span      13876 days (37.99 yr)  
   first obs. used      1983-08-13  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:33:45  

Additional Information
 Jupiter MOID = 2.4265 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.983035830011144E-16 -8.176490861336236E-16 -1.386686682753461E-14 2.178319859041154E-14 -4.469180374808099E-14 -1.540999884441125E-14
q -8.176490861336236E-16 2.316797242723161E-15 4.373810790463965E-14 -5.739022434459245E-14 1.2687139523899E-13 4.101632523797485E-14
tp -1.386686682753461E-14 4.373810790463965E-14 9.884149511774184E-10 -1.307581013210941E-11 2.006930509347434E-10 1.45892459903064E-11
node 2.178319859041154E-14 -5.739022434459245E-14 -1.307581013210941E-11 9.400214946711276E-12 -1.325727288029883E-11 -1.969677541671717E-12
peri -4.469180374808099E-14 1.2687139523899E-13 2.006930509347434E-10 -1.325727288029883E-11 5.500046808138204E-11 5.759929131994505E-12
i -1.540999884441125E-14 4.101632523797485E-14 1.45892459903064E-11 -1.969677541671717E-12 5.759929131994505E-12 1.806321158967275E-12

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-26 22:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin