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21016 Miyazawaseiroku (1988 VA)
Classification: Main-belt Asteroid          SPK-ID: 2021016
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983109223719996 2.9671e-08  
a 2.429974546394948 8.596e-09 au
q 1.948084052758885 7.2432e-08 au
i 11.86220206094868 3.5034e-06 deg
node 218.879107618754 1.7303e-05 deg
peri 182.8623444141051 2.0558e-05 deg
M 219.5238870003603 1.3607e-05 deg
tp 2459936.384668295708
(2022-Dec-22.88466830)
5.4389e-05 TDB
period 1383.569607930091
3.79
7.3416e-06
2.01e-08
d
yr
n .2601965220518128 1.3807e-09 deg/d
Q 2.911865040031012 1.0301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1509  
   data-arc span      11957 days (32.74 yr)  
   first obs. used      1988-11-03  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:56:23  

Additional Information
 Earth MOID = .95595 au 
 Jupiter MOID = 2.50358 au 
 T_jup = 3.452 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457702.5 (2016-Nov-10.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967366197825929 2.9592e-08  
q 1.954004659593264 7.2144e-08 au
tp 2457167.386645067889
(2015-May-24.88664507)
4.523e-05 TDB
node 218.8947464138678 1.7314e-05 deg
peri 182.8396237803425 2.0627e-05 deg
i 11.85188572174733 3.5011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1509  
   data-arc span      11957 days (32.74 yr)  
   first obs. used      1988-11-03  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:56:23  

Additional Information
 Jupiter MOID = 2.50358 au 
 T_jup = 3.452 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.756588287239582E-16 -2.125072484888838E-15 -2.62973355037223E-14 -2.531983734169113E-15 -3.271449227549047E-15 2.574729240604593E-18
q -2.125072484888838E-15 5.204826835039806E-15 2.398670405877398E-13 5.230925038095857E-15 5.392468914745918E-14 -1.395193324485814E-16
tp -2.62973355037223E-14 2.398670405877398E-13 2.045746546927694E-9 2.134821864497513E-12 5.198021211722053E-10 -6.140556330914192E-13
node -2.531983734169113E-15 5.230925038095857E-15 2.134821864497513E-12 2.997676493453632E-10 -2.927012817841424E-10 1.26987404087368E-12
peri -3.271449227549047E-15 5.392468914745918E-14 5.198021211722053E-10 -2.927012817841424E-10 4.254576940635431E-10 -1.348227688656752E-12
i 2.574729240604593E-18 -1.395193324485814E-16 -6.140556330914192E-13 1.26987404087368E-12 -1.348227688656752E-12 1.225750267496327E-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 14.74   n/a MPO636380  

21016 Miyazawaseiroku           Discovered 1988 Nov. 2 by T. Seki at Geisei.
Brother of the author of Night On The Milky Way Train and The Twin Stars, Iwate-born Seiroku Miyazawa (1904-2001) devoted his long life to publishing the famous and fantastic stories, which appealed to Japanese of all ages.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1988 VA = 1999 NZ54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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