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74429 (1999 BU7)
Classification: Main-belt Asteroid          SPK-ID: 2074429
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104690724169169 4.7176e-08  
a 2.753155160480236 1.7095e-08 au
q 2.449016663682136 1.2777e-07 au
i 10.86333046533819 4.9781e-06 deg
node 110.7956425233403 3.6428e-05 deg
peri 131.278600105129 4.8412e-05 deg
M 132.176710395371 3.1542e-05 deg
tp 2458387.871923141550
(2018-Sep-26.37192314)
0.00014631 TDB
period 1668.570105953897
4.57
1.5541e-05
4.255e-08
d
yr
n .2157535956777754 2.0095e-09 deg/d
Q 3.057293657278335 1.8983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      7683 days (21.03 yr)  
   first obs. used      1998-10-20  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:15:54  

Additional Information
 Earth MOID = 1.45034 au 
 Jupiter MOID = 2.03533 au 
 T_jup = 3.310 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457110.5 (2015-Mar-29.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100646684595531 4.6838e-08  
q 2.451335574240844 1.2679e-07 au
tp 2456721.579842258851
(2014-Mar-05.07984226)
0.00014967 TDB
node 110.8531395654901 3.646e-05 deg
peri 131.9479310333502 4.8686e-05 deg
i 10.85707445782281 4.9761e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      7683 days (21.03 yr)  
   first obs. used      1998-10-20  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:15:54  

Additional Information
 Jupiter MOID = 2.03533 au 
 T_jup = 3.310 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.193831329611109E-15 -5.896888658719208E-15 -2.755876480259859E-12 -2.45425976377454E-15 -6.52589432320439E-13 1.791740066921852E-16
q -5.896888658719208E-15 1.607678859267828E-14 7.205408106356505E-12 1.40647608541929E-14 1.713562166049992E-12 1.172522243227793E-15
tp -2.755876480259859E-12 7.205408106356505E-12 2.240075939635359E-8 3.33127551798272E-11 4.905461198956019E-9 -5.062229825430206E-12
node -2.45425976377454E-15 1.40647608541929E-14 3.33127551798272E-11 1.329361898921038E-9 -1.296868686133326E-9 6.119549578573942E-11
peri -6.52589432320439E-13 1.713562166049992E-12 4.905461198956019E-9 -1.296868686133326E-9 2.37029804862867E-9 -6.10679952757641E-11
i 1.791740066921852E-16 1.172522243227793E-15 -5.062229825430206E-12 6.119549578573942E-11 -6.10679952757641E-11 2.476152600783533E-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 15.0   n/a MPO449470  
diameter diameter 2.991 km 0.479 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74429 (1999 BU7)          Discovered 1999-Jan-21 by Korlevic, K. at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 BU7 = 2000 JX65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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