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55755 Blythe (1991 TB15)
Classification: Main-belt Asteroid          SPK-ID: 2055755
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158649324449075 4.3188e-08  
a 2.349448499455953 8.7063e-09 au
q 1.976710082189373 1.0034e-07 au
i 3.729208532302043 4.8632e-06 deg
node 66.54589557750352 7.7793e-05 deg
peri 349.9740305903484 7.9366e-05 deg
M 20.90081383760964 1.6679e-05 deg
tp 2459124.132597773107
(2020-Oct-01.63259777)
6.0796e-05 TDB
period 1315.368148593855
3.60
7.3115e-06
2.002e-08
d
yr
n .2736876367158841 1.5213e-09 deg/d
Q 2.722186916722533 1.0088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      10749 days (29.43 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:11:58  

Additional Information
 Earth MOID = .988024 au 
 Jupiter MOID = 2.61012 au 
 T_jup = 3.539 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456912.5 (2014-Sep-12.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595179709266041 4.3362e-08  
q 1.974190239921687 1.0084e-07 au
tp 2456491.326733047940
(2013-Jul-17.82673305)
5.6527e-05 TDB
node 66.56839062403461 7.7738e-05 deg
peri 349.4270672453523 7.9287e-05 deg
i 3.731927541084151 4.8646e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      10749 days (29.43 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:11:58  

Additional Information
 Jupiter MOID = 2.61012 au 
 T_jup = 3.539 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.880245202427922E-15 -4.361506514756537E-15 -1.139008957213768E-13 -6.30657282102138E-16 -3.428620997138642E-14 -5.08661605295402E-16
q -4.361506514756537E-15 1.016935166792418E-14 3.207245728470577E-13 1.230900265378786E-15 9.814522000600325E-14 1.252806782586893E-15
tp -1.139008957213768E-13 3.207245728470577E-13 3.195270015755438E-9 8.266648792121094E-12 9.059406282668179E-10 2.072886279653396E-13
node -6.30657282102138E-16 1.230900265378786E-15 8.266648792121094E-12 6.043127695870456E-9 -6.027480572241856E-9 -6.230952601499296E-12
peri -3.428620997138642E-14 9.814522000600325E-14 9.059406282668179E-10 -6.027480572241856E-9 6.286405569073868E-9 6.32570545946086E-12
i -5.08661605295402E-16 1.252806782586893E-15 2.072886279653396E-13 -6.230952601499296E-12 6.32570545946086E-12 2.366406816612333E-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 16.59   n/a MPCxxxxx  
diameter diameter 2.901 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

55755 Blythe           Discovered 1991 Oct. 6 by A. Lowe at Palomar.
Blythe Andra Lowe, a professional geologist, is the wife of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

Alternate Designations
 1991 TB15 = 1991 VY8 = 1998 SO90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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