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19983 Inagekiyokazu (1990 DW)
Classification: Main-belt Asteroid          SPK-ID: 2019983
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05792005568261505 1.6123e-08  
a 2.389985232761634 7.9181e-09 au
q 2.251557154999453 3.8215e-08 au
i 6.379748807300594 4.9367e-07 deg
node 331.4606471312784 7.9048e-06 deg
peri 97.7302080855065 2.249e-05 deg
M 207.5051144509773 1.9774e-05 deg
tp 2459772.168195022642
(2022-Jul-11.66819502)
7.4926e-05 TDB
period 1349.557065256409
3.69
6.7067e-06
1.836e-08
d
yr
n .2667541886653023 1.3256e-09 deg/d
Q 2.528413310523816 8.3767e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2296  
   data-arc span      23679 days (64.83 yr)  
   first obs. used      1955-10-24  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:10:38  

Additional Information
 Earth MOID = 1.2758 au 
 Jupiter MOID = 2.6097 au 
 T_jup = 3.522 
[ 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 13.39   n/a E2021B10  
diameter diameter 4.395 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19983 Inagekiyokazu           Discovered 1990 Feb. 18 by M. Matsuyama and K. Watanabe at Kushiro.
Kiyokazu Inage (b. 1950) is a Japanese amateur astronomer and popularizer of astronomy in Kagawa Prefecture. His main interests are nebulae, star clusters, solar eclipses and deep space observations, and he is well known for his beautiful stellar photographs.
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 2020-08-07Last Updated: 2020-08-24

Alternate Designations
 1990 DW = 1999 RM198 = 1999 RR22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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