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16477 (1990 QH5)
Classification: Main-belt Asteroid          SPK-ID: 2016477
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08050428510259311 5.5105e-08  
a 2.191644257661763 1.0918e-08 AU
q 2.015207503499499 1.1812e-07 AU
i 3.716118952717006 5.677e-06 deg
node 25.5140720855401 7.0308e-05 deg
peri 322.6188997668537 7.7274e-05 deg
M 168.2120693844113 3.373e-05 deg
tp 2456446.757097700982
(2013-Jun-03.25709770)
0.00010962 JED
period 1185.095965807794
3.24
8.8555e-06
2.425e-08
d
yr
n .3037728676720406 2.2699e-09 deg/d
Q 2.368081011824026 1.1797e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1113  
   data-arc span      9032 days (24.73 yr)  
   first obs. used      1990-08-25  
   last obs. used      2015-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55886  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:26:30  

Additional Information
 Earth MOID = 1.01052 AU 
 T_jup = 3.665 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO279689  

16477 (1990 QH5)          Discovered 1990-Aug-25 by Holt, H. E. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QH5 = 1999 JH20 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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