Table 1:
Observing periods in years 2000-2002.
Time periods of each year are labeled with the beginning day
in Nov., bd, the end day, ed, the beginning hour and minute,
bh and bm, and end hour and minute, eh and em, respectively of
each particular period, in UT, and with the corresponding solar
longitudes,
and
[J2000.0]. The last
column indicates whether the period was considered a background
(i.e. b) or shower (i.e. s) activity. These periods were the
same for all 4 categories of echoes except for 2000 when also
the interval from
to
was used as a background for echoes having
s.
| 2000 |
| Beginning |
End |
|
| bd |
bh |
bm |
 |
ed |
eh |
em |
 |
b/s |
| 14 |
22 |
00 |
 |
15 |
13 |
00 |
 |
b |
| 16 |
4 |
40 |
 |
16 |
10 |
52 |
 |
b |
| 16 |
22 |
00 |
 |
17 |
12 |
23 |
 |
s |
| 17 |
22 |
00 |
 |
18 |
13 |
00 |
 |
s |
| 18 |
22 |
00 |
 |
19 |
13 |
00 |
 |
b |
| 2001 |
| Beginning |
End |
|
| bd |
bh |
bm |
 |
ed |
eh |
em |
 |
b/s |
| 15 |
22 |
00 |
 |
16 |
13 |
00 |
 |
b |
| 16 |
22 |
00 |
 |
17 |
13 |
00 |
 |
b |
| 17 |
22 |
00 |
 |
18 |
13 |
00 |
 |
s |
| 18 |
22 |
00 |
 |
19 |
13 |
00 |
 |
s |
| 2002 |
| Beginning |
End |
|
| bd |
bh |
bm |
 |
ed |
eh |
em |
 |
b/s |
| 14 |
23 |
00 |
 |
15 |
13 |
00 |
 |
b |
| 17 |
23 |
00 |
 |
18 |
13 |
00 |
 |
b |
| 18 |
23 |
00 |
 |
19 |
13 |
00 |
 |
s |
| 19 |
23 |
00 |
 |
20 |
13 |
00 |
 |
b |
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