ASSUMPTIONS:

(A) Launch at 02:45 UT from Koln  {note: erratum - fixed from initial posting}
(B) Landing NO LATER than 14:15 UT at Dusseldorf
(A) Mid-eclipse centerline intercept 09:43 UT
(B) True Ground Speed = 483 nm/hr
(C) No wind
(D) Totality Run Start 6 minutes before mid-eclipse (MINIMUM*)
(E) Totality Run End 3 minutes after mid-eclipse (MINIMUM)

 * For pre-totality portion of run 9 min would be preferable, but
   for conservatove planning purposes 6 is used below.  This is
   open for discussion to trade run-start time for contingency time.


SCENARIO #1.
a) Proceed directly from CGN to NP. View eclipse on return from NP.
b) Total pre-eclipse margin is estimated at 0.496 hr (appx 30 min).
c) Suggest margin be used for NP siteseeing if not needed for eclipse intercept.

                             LATITUDE  LONGITUDE   Leg      Time   UT start  
                             DDMM.fff  DDMM.fff    NautMi   hours  hh:mm:ss
1. KöLN LAUNCH               5117.366N 0646.007E      0.0   0.00   02:45:00  WHEELS-UP
2.   Departure Ops                                    TBS   0.33   03:05:00 (estimate)
3.   CGN->NP cruise                                2331.7   4.827
4. NORTH POLE                9000.000N ---------                   07:54:37 

5.   Contingency/Siteseeing                                 0.496  07:54:37 (estimate)                                        

6. NORTH POLE                9000.000N ---------                  08:24:22
7.   N.P.-> T.R. Start                             463.9   0.960  08:39:22
8. TOTALITY RUN START        8218.488N 1256.093E                  09:37:00  <-Time Critical                               

9. TOTALITY RUN START        8218.488N 1256.093E                  09:37:00  <-Time Critical

10.  Mid-Eclipse Intercept    8235.698N 1839.151E                  09:43:00  <-MID-ECLIPSE INTERCEPT
11. TOTALITY RUN END          8243.743N 2133.921E    72.5   0.150  09:46:00  <-Time Critical

13.  T.R. End->DUS                                 1940.0   4.017  13:47:00  
14.  Approach Ops                                     TBS    0.33  14:07:00 (estimate)
15. DUSSELDORF LANDING        5052.033N 0708.617E                  14:07:00  LANDING


SCENARIO #2.
a) Procede from CGN to overfly Longyearbyen in route to NP.  View eclipse on NP return.
b) Total pre-eclipse margin is estimated at 0.473 hr (appx 28 min).
c) Suggests margin be split for Svalbard and NP siteseeing. 
   Below suggests near-equal split - but does not need to be that way.
   If Longyearbyen is JUST vectored overflight with no descent/ascent,
   or similar for NP, margin (5) and (9) can be realloctaed.

                             LATITUDE  LONGITUDE   Leg      Time   UT start  

                             DDMM.fff  DDMM.fff    NautMi   hours  hh:mm:ss
1. KöLN LAUNCH               5117.366N 0646.007E      0.0   0.00   02:45:00  WHEELS-UP
2.   Departure Ops                                    TBS   0.33   03:05:00 (estimate)
3.   CGN->LYB cruise                               1633.1   3.381
4. LONGYEARBYEN/SVALBARD     7814.250N 1524.500E                   06:27:52

5.   Contingency/Siteseeing                                 0.223  06:27:52 
 
6. LONGYEARBYEN/SVALBARD     7814.250N 1524.500E                  
06:41:15
7.  
LYB->N.P. cruise                               709.3   1.469
8.
NORTH POLE                9000.000N ---------                   08:09:22 

9.   Contingency/Siteseeing                                 0.25   08:09:22 (estimate)                                        

10. NORTH POLE                9000.000N ---------                  08:24:22 OK
11.   N.P.-> T.R. Start                             463.9   0.960  08:39:22
12. TOTALITY RUN START        8218.488N 1256.093E                  09:37:00  <-Time Critical                               

13. TOTALITY RUN START        8218.488N 1256.093E                  09:37:00  <-Time Critical

14.  Mid-Eclipse Intercept    8235.698N 1839.151E                  09:43:00  <-MID-ECLIPSE INTERCEPT
15. TOTALITY RUN END          8243.743N 2133.921E    72.5   0.150  09:46:00  <-Time Critical

16. TOTALITY RUN END          8243.743N 2133.921E                  09:46:00 
17.  T.R. End->DUS                                 1940.0   4.017  13:47:00  
18.  Approach Ops                                     TBS    0.33  14:07:00 (estimate)
19. DUSSELDORF LANDING        5052.033N 0708.617E                  14:07:00  LANDING