Coherent Scatter Echoes
| Most common ionospheric/atmospheric coherent echoes | ||||
| Echoes | Abbr. | Altitude (km) |
Time of the day |
Strength above ISR (dB) |
|---|---|---|---|---|
| Equatorial Electrojet | EEJ | 95-110 90-130 |
Daytime Nighttime |
30-60 20-50 |
| 150 km echoes | 150 km | 130-170 | Daytime | 10-30 |
| Neutral atmosphere | MST | 0.2-85 | All day | 30-50 |
| Meteor-head | Head | 85-130 | All day | 20-40 |
| Non-specular meteor | Non-specular | 95-115 | All day | 20-50 |
| Specular meteor | Specular | 80-120 | All day | 30-60 |
Read more about this topic: Jicamarca Radio Observatory
Famous quotes containing the words coherent, scatter and/or echoes:
“We have good reason to believe that memories of early childhood do not persist in consciousness because of the absence or fragmentary character of language covering this period. Words serve as fixatives for mental images. . . . Even at the end of the second year of life when word tags exist for a number of objects in the child’s life, these words are discrete and do not yet bind together the parts of an experience or organize them in a way that can produce a coherent memory.”
—Selma H. Fraiberg (20th century)
“Yet the wound, O see the wound
This petrified heart has taken,
Because, created deathless,
Nothing but death remained
To scatter magnificence....”
—Philip Larkin (1922–1986)
“Thus far women have been the mere echoes of men. Our laws and constitutions, our creeds and codes, and the customs of social life are all of masculine origin. The true woman is as yet a dream of the future. A just government, a humane religion, a pure social life await her coming.”
—Elizabeth Cady Stanton (1815–1902)