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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
91228 (1999 BG13)
Classification: Main-belt Asteroid          SPK-ID: 2091228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07982467081717304 3.1748e-08  
a 2.205277529015173 8.3273e-09 au
q 2.029241976201028 6.7756e-08 au
i 4.300142039579858 3.6052e-06 deg
node 292.6072739869417 5.7355e-05 deg
peri 204.4197632294177 6.6116e-05 deg
M 184.470675402068 3.2137e-05 deg
tp 2459583.730847597103
(2022-Jan-04.23084760)
0.00010746 TDB
period 1196.171099136278
3.27
6.7753e-06
1.855e-08
d
yr
n .3009602892595766 1.7047e-09 deg/d
Q 2.381313081829318 8.992e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1219  
   data-arc span      7468 days (20.45 yr)  
   first obs. used      1999-01-22  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4902  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:26:10  

Additional Information
 Earth MOID = 1.04391 au 
 Jupiter MOID = 2.63712 au 
 T_jup = 3.654 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456964.5 (2014-Nov-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07963538753930109 3.169e-08  
q 2.029272407066967 6.7603e-08 au
tp 2457190.707076060872
(2015-Jun-17.20707606)
0.00010549 TDB
node 292.6585287093224 5.7366e-05 deg
peri 204.2319567037907 6.6187e-05 deg
i 4.30016646228935 3.6055e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1219  
   data-arc span      7468 days (20.45 yr)  
   first obs. used      1999-01-22  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4902  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:26:10  

Additional Information
 Jupiter MOID = 2.63712 au 
 T_jup = 3.654 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.004254791908573E-15 -2.130451783298422E-15 3.949317094876769E-13 4.973338442226677E-16 1.270077007166965E-13 -4.437181177441421E-16
q -2.130451783298422E-15 4.570228440843193E-15 -7.761880491994238E-13 -3.341450701262643E-16 -2.541022475050144E-13 1.018706263948008E-15
tp 3.949317094876769E-13 -7.761880491994238E-13 1.112799925689663E-8 6.865068040581116E-12 3.500091711683758E-9 -2.539659450349898E-12
node 4.973338442226677E-16 -3.341450701262643E-16 6.865068040581116E-12 3.290827059310719E-9 -3.279106196647987E-9 -4.151934567776955E-11
peri 1.270077007166965E-13 -2.541022475050144E-13 3.500091711683758E-9 -3.279106196647987E-9 4.380662564215333E-9 4.058715735721435E-11
i -4.437181177441421E-16 1.018706263948008E-15 -2.539659450349898E-12 -4.151934567776955E-11 4.058715735721435E-11 1.299956888471983E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO325091  

91228 (1999 BG13)          Discovered 1999-Jan-24 by Korlevic, K. at Visnjan
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-28 22:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin