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10178 Iriki (1996 DD)
Classification: Main-belt Asteroid          SPK-ID: 2010178
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .002310510265599708 2.7025e-08  
a 2.18765524487943 5.6271e-09 au
q 2.182600644978542 5.9948e-08 au
i 2.260306324684315 3.7184e-06 deg
node 53.46504207384675 7.2772e-05 deg
peri 54.84265024815573 0.00081954 deg
M 293.1156182288948 0.00081647 deg
tp 2459420.078071449500
(2021-Jul-24.57807145)
0.0026805 TDB
period 1181.861947866126
3.24
4.56e-06
1.248e-08
d
yr
n .3046041042695272 1.1753e-09 deg/d
Q 2.192709844780317 5.6401e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2007  
   data-arc span      10747 days (29.42 yr)  
   first obs. used      1991-10-17  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:33:14  

Additional Information
 Earth MOID = 1.17502 au 
 Jupiter MOID = 2.76547 au 
 T_jup = 3.674 
[ 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 14.92   n/a E2021B10  
diameter diameter 3.177 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.231   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10178 Iriki           Discovered 1996 Feb. 18 by T. Kobayashi at Oizumi.
Iriki is a historical town in the Satuma area, Kagoshima prefecture. Here on the Mt. Yaeyama highland are the National Astronomical Observatory's Iriki Station of VERA (VLBI Exploration of Radio Astrometry), as well as the Kagoshima University's 1-m optical-infrared telescope.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1996 DD = 1991 UH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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