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9109 Yukomotizuki (1997 AH7)
Classification: Main-belt Asteroid          SPK-ID: 2009109
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0939206893331664 5.1346e-08  
a 2.329928549309747 1.2781e-08 AU
q 2.111100053861551 1.1888e-07 AU
i 7.16526701809399 6.5617e-06 deg
node 151.3836279109316 4.2086e-05 deg
peri 265.9836302186196 5.757e-05 deg
M 72.02659940057283 3.8796e-05 deg
tp 2456740.602117340511
(2014-Mar-24.10211734)
0.0001395 JED
period 1299.009512264605
3.56
1.0689e-05
2.926e-08
d
yr
n .2771342292731949 2.2803e-09 deg/d
Q 2.548757044757943 1.3981e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1006  
   data-arc span      9240 days (25.30 yr)  
   first obs. used      1990-03-01  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53764  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:01:18  

Additional Information
 Earth MOID = 1.13671 AU 
 T_jup = 3.555 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO279612  

9109 Yukomotizuki           Discovered 1997 Jan. 9 by T. Kobayashi at Oizumi.
Yuko Motizuki (b. 1965) is an associate professor at Saitama University. Her speciality is the theoretical study of nucleosynthesis, supernovae and neutron stars. She is also leading a team to examine the effects of solar cycles and supernovae on Antarctic ice cores.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1997 AH7 = 1990 EV5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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