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23504 Haneda (1992 EX)
Classification: Main-belt Asteroid          SPK-ID: 2023504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08915138650937608 4.2419e-08  
a 2.65808697616336 1.1336e-08 au
q 2.421114836775882 1.1469e-07 au
i 10.24474256569992 3.9731e-06 deg
node 136.5267655194971 2.5638e-05 deg
peri 25.53580487715681 3.3802e-05 deg
M 233.1353890317897 2.3294e-05 deg
tp 2459758.315013998857
(2022-Jun-27.81501400)
0.00010358 TDB
period 1582.895367802043
4.33
1.0126e-05
2.772e-08
d
yr
n .2274313307896555 1.4549e-09 deg/d
Q 2.895059115550838 1.2347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1808  
   data-arc span      10598 days (29.02 yr)  
   first obs. used      1992-02-28  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45397  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:25:21  

Additional Information
 Earth MOID = 1.43436 au 
 Jupiter MOID = 2.09944 au 
 T_jup = 3.359 
[ 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 13.90   n/a E2021B10  
diameter diameter 4.712 km 0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.289   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

23504 Haneda           Discovered 1992 Mar. 7 by T. Seki at Geisei.
Toshio Haneda (1910-1992) was a comet hunter from Minamisoma city (formerly Haramachi city), Fukushima prefecture, He discovered comet D/1978 R1 (Haneda-Campos) on 1978 Sept. 1. He was then the world's oldest living comet discoverer. The name was suggested by H. Sato.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

Alternate Designations
 1992 EX = 1998 RM29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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