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16730 Nijisseiki (1996 HJ1)
Classification: Main-belt Asteroid          SPK-ID: 2016730
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153293022943299 3.7004e-08  
a 2.361684431567628 1.0871e-08 au
q 1.85314457067879 8.5892e-08 au
i 1.609075606441188 4.4177e-06 deg
node 42.01382534773169 0.00013602 deg
peri 267.61681157 0.00013647 deg
M 219.1335048129992 1.46e-05 deg
tp 2459719.224111488974
(2022-May-19.72411149)
5.6403e-05 TDB
period 1325.657175527308
3.63
9.1528e-06
2.506e-08
d
yr
n .27156342276562 1.875e-09 deg/d
Q 2.870224292456466 1.3211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      9102 days (24.92 yr)  
   first obs. used      1996-04-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56609  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:40:19  

Additional Information
 Earth MOID = .837495 au 
 Jupiter MOID = 2.39928 au 
 T_jup = 3.519 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO452407  

16730 Nijisseiki           Discovered 1996 Apr. 17 at Saji Observatory.
The Niji-sseiki fruit is a type of locally cultivated pear representative of and having a strong affinity to Tottori prefecture, a major pear producing area in which Saji village is located. In English, Niji-sseiki translates as "twentieth Century".
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1996 HJ1 = 1997 YR19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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