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19378 (1998 BB7)
Classification: Main-belt Asteroid          SPK-ID: 2019378
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07491552503106315 3.625e-08  
a 2.397186294222446 9.2519e-09 au
q 2.217599824393503 8.7447e-08 au
i 6.145037659427906 4.3019e-06 deg
node 345.1213376760977 3.5749e-05 deg
peri 231.851016873309 4.5549e-05 deg
M 299.9545300422763 2.8925e-05 deg
tp 2459226.614729178441
(2021-Jan-12.11472918)
0.00010906 TDB
period 1355.661010923073
3.71
7.8482e-06
2.149e-08
d
yr
n .2655531118025405 1.5373e-09 deg/d
Q 2.57677276405139 9.945e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      9517 days (26.06 yr)  
   first obs. used      1994-01-14  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:47:00  

Additional Information
 Earth MOID = 1.21729 au 
 Jupiter MOID = 2.40723 au 
 T_jup = 3.517 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456707.5 (2014-Feb-19.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07520978069523593 3.6151e-08  
q 2.217001010589546 8.7242e-08 au
tp 2456516.785145693366
(2013-Aug-12.28514569)
0.00010841 TDB
node 345.1610778680022 3.5725e-05 deg
peri 232.2272308724035 4.551e-05 deg
i 6.147759615315207 4.3029e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      9517 days (26.06 yr)  
   first obs. used      1994-01-14  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:47:00  

Additional Information
 Jupiter MOID = 2.40723 au 
 T_jup = 3.517 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.306900601835141E-15 -3.138784946164153E-15 -5.100857470043606E-13 6.617389807162969E-15 -1.452686103381446E-13 3.148840950699837E-16
q -3.138784946164153E-15 7.611111860348371E-15 1.183911131257218E-12 -1.611558350589756E-14 3.395587829632786E-13 -4.88151496403955E-16
tp -5.100857470043606E-13 1.183911131257218E-12 1.175314156184409E-8 -7.850452398743619E-12 3.070062433399383E-9 2.95287578730719E-12
node 6.617389807162969E-15 -1.611558350589756E-14 -7.850452398743619E-12 1.276249160080853E-9 -1.270478206889301E-9 1.585588381905604E-12
peri -1.452686103381446E-13 3.395587829632786E-13 3.070062433399383E-9 -1.270478206889301E-9 2.071191806075497E-9 -7.953648652179976E-13
i 3.148840950699837E-16 -4.88151496403955E-16 2.95287578730719E-12 1.585588381905604E-12 -7.953648652179976E-13 1.85147790640564E-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 14.7   n/a MPO459000  
diameter diameter 2.481 km 0.898 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19378 (1998 BB7)          Discovered 1998-Jan-24 by Kobayashi, T. at Oizumi
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BB7 = 1996 US4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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