Operation pass
20-3
UTC Date: 4/20/97
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Tape Start Time:4:31 |
| T-Time:
4:43 |
| Tape Stop Time:
4:56 |
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Spectrograms |
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Wave files
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Data Log sheet |
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Sferic density: 0-5 (0=low 5=high)
M=Time Mark
T=Tweek
W=Whistler
O=Omega
C=Chorus
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Time |
Entry |
Sferic density |
| 4:31 |
M, O: present, W: weak |
3 |
| 4:33 |
M, T: semi-continuous |
3 |
| 4:35 |
O: cont, T: present |
3 |
| 4:38 |
M, W: difuse weak, O: cont |
3 |
| 4:41 |
W: difuse weak, T: semi-continuous |
3 |
| 4:43 |
M, T: present, O: cont |
3 |
| 4:45 |
W: difuse, Sferic burst |
3 |
| 4:47 |
O: cont, T: present |
2 |
| 4:49 |
W: double, 2 per minute |
3 |
| 4:51 |
M, O: cont, T: semi-continuous |
3 |
| 4:52 |
W: difuse, 2 per minute |
3 |
| 4:53 |
T: present, O: cont |
3 |
| 4:54 |
W: difuse, 2 per minute |
3 |
| 4:55 |
W: difuse, weak |
3 |
| 4:56 |
M, W: 2 per minute |
3 |
| 4:57 |
O: cont, T: present |
3 |
| 4:58 |
W: difuse, 3 per minute |
3 |
| 4:59 |
W: difuse, weak |
3 | |
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Note from the
field
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Greetings fellow Inspire
Teammates,
Sorry for being so late on sending in the
data, hope we can make it into the journal in time
for November. You might notice a difference in tape speed.
Apparently the tape deck was going a little fast, because I made an
adjustment to the motor before the April 20 operation. I have
corrected the problem since then. Our E-Field antenna has been
improved since the last data take in early May. With the help
of Mike Staal at M2 or M-squared Enterprises in Fresno, Ca., we were
able to come up with a very nice vertical VLF antenna. It stands
14.6 meters (or 48 Feet) tall. I designed a support base using a old
milkcrate and some slabs of aluminium bolted to it. Mike
suggested using 1 1/2 inch diameter aluminium tubing for the first
few meters of the vertical element, getting smaller as the height is
increased. A very srong fiberglass pipe insulates the antenna from
ground. Within a few minutes we had superb VLF antenna, at a
very good price. The performance was excellent, even in the daytime
we could hear a good activity level. Just about 10 minutes before
tape start time on the 20-9 data take, the wind blew down my new
vertical, no damage was done, it was back up in no time. The weather
was mostly overcast on the 20-3 data take. As the clouds began
to dissipate, Comet Hale-Bopp was surprisingly visible through the
haze. It was clear on the next day's
pass.
Sincerely, Team 19.
Flealess leader : Larry Kramer
Flunkey : Clifton Lasky
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