Warning: The listed densities were calculated prior to cross-calibration
with the RPWS measurements of electron density, and are known to be high by a
factor of a few.
Frank Crary's Email on Bow Shocks
I haven't had a chance to look at Bill's spreadsheet, or
compare it to the CAPS data, but I have just put together some fits to shock-related
CAPS data. For quite a few of the shocks, we either had a poor pointing, or I
was unable to get good fits to the CAPS spectra (software rather than data
problems). There are also some events where I'm not sure if we were seeing a
bow or interplanetary shock. But for the following 5 events, I'm fairly sure we
were seeing a bow shock crossings, and I've calculated upstream solar wind
conditions. With luck, this will help explain why some of the crossings were so
far from the pre-encounter predictions.
Frank
Year
DOY
Hour
n_sw [cm^-3]
v_sw [km/s]
T_sw [eV]
Note
2001
002
1806
0.062
375
0.57
Closest
2001
002
2220
IX
2001
012
1423
0.47
307
0.51
OX
2001
014
0207
0.23
329
0.42
IX
2001
016
2131
1.7
344
1.8
OX
2001
018
0630
OX
2001
018
0646
0.54
401
1.6
Closest
2001
030
1023
0.19
390
0.4
Waves,IX
Notes: Closest
Closest available time with CAPS data (pointing issue) and which can be fit
using our current (version 0.0 Beta) fitting software. IX
Inbound bowshock crossing OX
Outbound bowshock crossing Waves
Measurement ~10 min. before shock crossing, plasma turbulance or waves immediately
before crossing
