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120285 Brentbos (2004 HE47)
Classification: Main-belt Asteroid          SPK-ID: 2120285
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298263016235831 5.4747e-08  
a 2.606918178707315 1.6877e-08 au
q 2.268471632930458 1.4242e-07 au
i 15.64833883751539 4.2858e-06 deg
node 59.43258149823792 1.5503e-05 deg
peri 303.9635763186112 2.1579e-05 deg
M 191.6903479565667 1.628e-05 deg
tp 2459919.280106986498
(2022-Dec-05.78010699)
7.2944e-05 TDB
period 1537.409384272058
4.21
1.493e-05
4.088e-08
d
yr
n .2341601421734882 2.274e-09 deg/d
Q 2.945364724484173 1.9068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      8026 days (21.97 yr)  
   first obs. used      1999-02-18  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52715  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:45  

Additional Information
 Earth MOID = 1.30585 au 
 Jupiter MOID = 2.58407 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457449.5 (2016-Mar-02.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286110628620759 5.4814e-08  
q 2.273450382557592 1.4248e-07 au
tp 2456839.876028779450
(2014-Jul-01.37602878)
6.3215e-05 TDB
node 59.53195155315181 1.5528e-05 deg
peri 303.2872753822163 2.1686e-05 deg
i 15.63003946432298 4.281e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      8026 days (21.97 yr)  
   first obs. used      1999-02-18  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52715  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:45  

Additional Information
 Jupiter MOID = 2.58407 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.004579772140317E-15 -7.768085687072162E-15 4.201150466702063E-13 -2.431948513019677E-14 -1.624738114505522E-14 3.441161600597893E-15
q -7.768085687072162E-15 2.030042579108108E-14 -9.495514731458635E-13 6.438539945140115E-14 9.06482446162068E-14 -9.193265675362219E-15
tp 4.201150466702063E-13 -9.495514731458635E-13 3.996115201194316E-9 -4.115675459303039E-12 9.643497360823624E-10 -5.357976244088738E-12
node -2.431948513019677E-14 6.438539945140115E-14 -4.115675459303039E-12 2.4112064014948E-10 -2.316310986868645E-10 -1.159040568772041E-11
peri -1.624738114505522E-14 9.06482446162068E-14 9.643497360823624E-10 -2.316310986868645E-10 4.702642496490368E-10 9.674841073789383E-12
i 3.441161600597893E-15 -9.193265675362219E-15 -5.357976244088738E-12 -1.159040568772041E-11 9.674841073789383E-12 1.832703431661575E-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 15.13   n/a E2021B55  

120285 Brentbos           Discovered 2004 Apr. 22 by the Catalina Sky Survey.
Brent J. Bos (b. 1969) is the OSIRIS-REx Asteroid Sample Return Mission TAGCAMS instrument scientist. Prior to serving in this role, he was the NASA OSIRIS-REx optics lead. Before joining OSIRIS-REx he supported four Mars lander missions and the optical design and construction of the James Webb Space Telescope.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-05-21Last Updated: 2016-05-24

Alternate Designations
 2004 HE47 = 2005 PO17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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