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JPL Small-Body Database Browser
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15951 (1998 BB2)
Classification: Main-belt Asteroid          SPK-ID: 2015951
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269860492661816 4.1888e-08  
a 3.129398387421817 1.991e-08 au
q 2.73200844962316 1.3203e-07 au
i 17.69791396082515 4.6555e-06 deg
node 102.0397645450843 1.2716e-05 deg
peri 160.1227865278478 1.9541e-05 deg
M 242.2324295917838 1.5902e-05 deg
tp 2459661.974220579635
(2022-Mar-23.47422058)
9.1636e-05 TDB
period 2022.039841556034
5.54
1.9297e-05
5.283e-08
d
yr
n .1780380349592749 1.6991e-09 deg/d
Q 3.526788325220473 2.2438e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2068  
   data-arc span      11725 days (32.10 yr)  
   first obs. used      1988-03-19  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:17:25  

Additional Information
 Earth MOID = 1.72189 au 
 Jupiter MOID = 1.63305 au 
 T_jup = 3.128 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456972.5 (2014-Nov-11.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .127498280860274 4.2071e-08  
q 2.733823104565338 1.3269e-07 au
tp 2457633.324374418360
(2016-Sep-01.82437442)
8.506e-05 TDB
node 102.1447043031904 1.2691e-05 deg
peri 158.7503874277594 1.9442e-05 deg
i 17.71429369315015 4.6583e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2068  
   data-arc span      11725 days (32.10 yr)  
   first obs. used      1988-03-19  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:17:25  

Additional Information
 Jupiter MOID = 1.63305 au 
 T_jup = 3.128 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.769937545237649E-15 -5.53335992843972E-15 -1.236829930952012E-13 -4.970697385322812E-15 1.762577584818793E-14 -1.810629306379775E-15
q -5.53335992843972E-15 1.760539997848114E-14 7.392741622143016E-13 1.650514933297753E-14 -1.509046359349372E-14 4.782336114011891E-15
tp -1.236829930952012E-13 7.392741622143016E-13 7.235163019861041E-9 9.158075225427991E-13 1.263859496364525E-9 2.696308186756956E-12
node -4.970697385322812E-15 1.650514933297753E-14 9.158075225427991E-13 1.610504791042182E-10 -1.533750403928003E-10 -8.015140480796491E-12
peri 1.762577584818793E-14 -1.509046359349372E-14 1.263859496364525E-9 -1.533750403928003E-10 3.78006350184674E-10 8.12164034445937E-12
i -1.810629306379775E-15 4.782336114011891E-15 2.696308186756956E-12 -8.015140480796491E-12 8.12164034445937E-12 2.170007111666402E-11

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 12.2   n/a MPO502291  
diameter diameter 16.329 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.096   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

15951 (1998 BB2)          Discovered 1998-Jan-17 by Lai, L. at Madonna di Dossob
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BB2 = 1988 FU2 = 1991 XV5 = 1997 WG27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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