[Geysers] Giant Geyser Report June 20

[TSBryan at aol.com]

GIANT June 20, 2007, at 1412, Mastiff function on marathon recovery, I = 7d  
11h 56m, D = 96m. Recovery time from end of Grotto to eruption a short (very  
short ! ) ~5h 25m (with which we uniformly agreed was a very nice thing for 
the  geysers to do for us on a hot [80+ degree] day.
 
Grotto started a marathon yesterday at 1744. It was quite short, ending  
today at about 0745, so a duration of about 14h. Before 1100 I saw jetting in  
back Mastiff, and each time it quit there was jetting in Catfish; also, water  
was frequently visible jetting in Giant. At this point I radioed that this  
appeared to be a quick, short period recovery. It sure was. The first bit  of 
splashing I saw in Bijou was at about 1200.
 
Mastiff began rising at about 1358. At first it came up to being barely  
visible and then sat there for a bit, so we were thinking "bathtub." But then it  
rose quickly with strong (1 to 3 foot) boiling. Feather on at 1401, Satellite  
very quickly after that. Mastiff immediately boiled variably 1 to 4 feet 
high,  and by the 2-minute mark, it was obviously wide, too. Mastiff did have a 
flat  pause at about 4 minutes, but it was brief and actually bubbled 
throughout. Then  it quickly came back and at this point I was pretty sure we had an 
eruption.  By 7 1/2 minutes, Mastiff was hitting 10+ feet, but still just  
surging. The bursting, the eruption started at 1410, by my watch 8m 34s after  the 
start of the hot period.
 
And along came Giant. It really didn't think about things too much -- no  
protracted series of "come ON" surges. Its eruption started at 1412, 10m 47s  
into the hot period. Gorgeous sky and lighting.
 
Photo of Mastiff about 1 minute into it is attached here. I'll attach a  
photo of Giant to a separate e-mail.
 
Meanwhile... (my notebook fell into some Giant water, and I lost part of  
today's page):
 
Riverside erupted.
 
Oblong was 0728 and 1300, so a "long" 5h 32m.
 
Daisy was kind of intermediate today, erupting at 0757, 1103, and  1354.
 
Artemisia was called at 1220, 25h 12m from yesterday's sighting.
 
Grand was last night at 23xx (there goes a piece of my notebook!) and today  
at 0816 (T2Q) and during Giant at 1506 (I was not watching for the number of  
bursts).
 
Castle had a minor during my quick morning trip the the Lower Basin and I  
didn't get the time; it had the major either just before or during Giant.  
Somebody called it, but...
 
Beehive erupted at 1354, without Indicator, so just 7 minutes before the  hot 
period. Indeed, Heinrich and Lynn were watching it from near Castle when I  
called the rising water.
 
In the Lower Basin, Great Fountain was 1157 (P=7).
 
Looking at Fountain, etc. today, you'd never know something odd had  happened 
yesterday. All seemed perfectly "normal." Judging by the damp runoff  
channels, Fountain probably erupted around 0730. Then as I drove out, it was  1620ie 
with Clepsydra off.
 
A nice day was had by all, especially since several long-time gazers got  
their first Giant.
 
Scott Bryan



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