IDL> crn=2081 & crl=180.550
IDL> date_crncrlz1,crn,crl
Orig. crl and date0 from times:      180.550 2009:03:23_02h:44m:20s
Last crli and date1           :      180.550 2009:03:23_05h:31m:59s
IDL> date_crncrlz3,crn,crl,10
Orig. crl and initial date:      180.550 2009:03:23_10h:44m:20s
Last crli and date        :      180.550 2009:03:23_05h:34m:19s
IDL> date_crncrlz3,crn,crl,30
Orig. crl and initial date:      180.505 2009:03:23_10h:44m:20s
Last crli and date        :      180.510 2009:03:23_05h:38m:20s
IDL> date_crncrlz3,crn,crl,50
Orig. crl and initial date:      180.505 2009:03:23_10h:44m:20s
Last crli and date        :      180.510 2009:03:23_05h:38m:29s
IDL> date_crncrlz3,crn,crl,60
Orig. crl and initial date:      180.505 2009:03:23_10h:44m:20s
Last crli and date        :      180.510 2009:03:23_05h:38m:20s

IDL> crn=2085 & crl=180.505
IDL> date_crncrlz1,crn,crl
Orig. crl and date0 from times:      180.505 2009:07:10_05h:09m:49s
Last crli and date1           :      180.505 2009:07:10_03h:42m:39s
IDL> date_crncrlz3,crn,crl,10
Orig. crl and initial date:      180.505 2009:07:10_13h:09m:49s
Last crli and date        :      180.510 2009:07:10_03h:44m:18s
IDL> date_crncrlz3,crn,crl,30
Orig. crl and initial date:      180.505 2009:07:10_13h:09m:49s
Last crli and date        :      180.510 2009:07:10_03h:44m:19s
IDL> date_crncrlz3,crn,crl,50
Orig. crl and initial date:      180.505 2009:07:10_13h:09m:49s
Last crli and date        :      180.510 2009:07:10_03h:43m:58s
IDL> date_crncrlz3,crn,crl,60
Orig. crl and initial date:      180.505 2009:07:10_13h:09m:49s
Last crli and date        :      180.510 2009:07:10_03h:43m:49s

test.pro =>
IDL> crn=2081 & crl1=150.550 & crl2=190.505
IDL> test,crn,crl1,crl2
Orig. crl and date0 from times:      150.550 2009:03:25_09h:17m:21s
Last crli and date1           :      150.550 2009:03:25_12h:08m:02s
Orig. crl and date0 from times:      190.505 2009:03:22_08h:33m:19s
Last crli and date1           :      190.505 2009:03:22_11h:24m:49s
2009:03:25_12h:08m:02s 2009:03:22_11h:24m:49s
z1-dt1:     -3.03001
2009:03:25_09h:17m:21s 2009:03:22_08h:33m:19s
z2-dt2:     -3.03058
z4-dt4:     -3.02718
Orig. crl and initial date:      150.550 2009:03:25_17h:17m:21s
Last crli and date        :      150.550 2009:03:25_12h:10m:21s
Orig. crl and initial date:      190.505 2009:03:22_16h:33m:19s
Last crli and date        :      190.510 2009:03:22_11h:26m:19s
2009:03:25_12h:10m:21s 2009:03:22_11h:26m:19s
z3-dt3:     -3.03058
IDL> crn=2085
IDL> test,crn,crl1,crl2
Orig. crl and date0 from times:      150.550 2009:07:12_11h:42m:51s
Last crli and date1           :      150.550 2009:07:12_10h:02m:02s
Orig. crl and date0 from times:      190.505 2009:07:09_10h:58m:49s
Last crli and date1           :      190.505 2009:07:09_09h:34m:34s
2009:07:12_10h:02m:02s 2009:07:09_09h:34m:34s
z1-dt1:     -3.01907
2009:07:12_11h:42m:51s 2009:07:09_10h:58m:49s
z2-dt2:     -3.03058
z4-dt4:     -3.02718
Orig. crl and initial date:      150.550 2009:07:12_19h:42m:51s
Last crli and date        :      150.550 2009:07:12_10h:03m:51s
Orig. crl and initial date:      190.505 2009:07:09_18h:58m:49s
Last crli and date        :      190.510 2009:07:09_09h:35m:49s
2009:07:12_10h:03m:51s 2009:07:09_09h:35m:49s
z3-dt3:     -3.01947
IDL> crn=2077
IDL> test,crn,crl1,crl2
Orig. crl and date0 from times:      150.550 2008:12:06_06h:51m:52s
Last crli and date1           :      150.551 2008:12:06_04h:22m:59s
Orig. crl and date0 from times:      190.505 2008:12:03_06h:07m:49s
Last crli and date1           :      190.505 2008:12:03_03h:36m:57s
2008:12:06_04h:22m:59s 2008:12:03_03h:36m:57s
z1-dt1:     -3.03197
2008:12:06_06h:51m:52s 2008:12:03_06h:07m:49s
z2-dt2:     -3.03059
z4-dt4:     -3.02718
Orig. crl and initial date:      150.550 2008:12:06_14h:51m:52s
Last crli and date        :      150.550 2008:12:06_04h:24m:52s
Orig. crl and initial date:      190.505 2008:12:03_14h:07m:49s
Last crli and date        :      190.510 2008:12:03_03h:37m:49s
2008:12:06_04h:24m:52s 2008:12:03_03h:37m:49s
z3-dt3:     -3.03267