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15727 Ianmorison (1990 TO9)
Classification: Main-belt Asteroid          SPK-ID: 2015727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1372391376963493 3.5134e-08  
a 2.283573654992728 7.4538e-09 au
q 1.970177975715425 8.1243e-08 au
i 3.235828371201703 3.4492e-06 deg
node 276.8867905660275 7.2145e-05 deg
peri 126.8006036682154 7.3552e-05 deg
M 252.4749516611001 1.5814e-05 deg
tp 2459576.968036214699
(2021-Dec-28.46803621)
5.6439e-05 TDB
period 1260.436476253698
3.45
6.1713e-06
1.69e-08
d
yr
n .2856153457808531 1.3984e-09 deg/d
Q 2.59696933427003 8.4768e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1348  
   data-arc span      10877 days (29.78 yr)  
   first obs. used      1990-09-16  
   last obs. used      2020-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:07:17  

Additional Information
 Earth MOID = .980269 au 
 Jupiter MOID = 2.77151 au 
 T_jup = 3.589 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.08   n/a MPCxxxxx  

15727 Ianmorison           Discovered 1990 Oct. 10 by L. D. Schmadel and F. Börngen at Tautenburg.
Ian Morison (b. 1943) is a radio astronomer at the University of Manchester's Jodrell Bank Observatory. Being responsible as operations manager for MERLIN and SETI, he lectures at the university and elsewhere, inspiring many people. He is also known as an excellent photographer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1990 TO9 = 1997 VB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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