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IACG time intervals for operational planning of the Campaign 2 activities:

Note (HH) gives UT hour of event.
DATE UT int. Geotail Interball-1 Polar Comments
*Aug.20,1997 05-13 MPout(09) MPout(10) cusp/cleft Magion4 visibil.
Sept.3,1997 15-21 MPin(21) MPin(17) Cap/BL
Sept.4,1997 15-21 MPout(23) MPout(17) Magion-4 visibil.
Sept.14,1997 22-00 MPin(00) Cap/BL AZ - Cap/BL
Sept.15,1997 00-12 MPin (09) cusp (11) Cap/BL AZ - Cap/BL; Magion-4 visibil. 23-05 UT
*Sep.29-30,1997 19-03 MPin(21) MPin(21) Cap/BL Magion-4 visibil. AZ-Cap/BL(01); Wind- MPin (15); Imp-8 - SW
*Oct.05,1997 00-04 MPin BL/Lobe Cap/BL AZ- Cap/BL (02)
20-00 PS BL(22-24) IMP-8 MPout (21);
Oct.06,1997 00-18 MPout(08) BL(00-24) Cap/BL(09-16) AZ- Cap/BL(02); Geotail upstream Interball-1
Oct.07,1997 00-05 SW BL(00-04) Cap/BL(09-16) AZ- Cap/BL(02)
Oct.10,1997 02-08 MPin(06) BL/LLBL Cap/BL
Oct.27, 1997 05-10 MPout(09) cusp Cap/BL
Dec.19,1997 13-18 MP cusp Cap/BL
Dec.27,1997 00-08 MP cusp Cusp/BL AZ - Cusp/BL
Jan.11,1998 08-16 BL(10-15) cusp Cap
*Jan.16-17,1998 05-05 BL(16-04) BL(06-03) Cap AZ - Cusp/BL
*Jan.26,1998 12-18 BL(10-15) cusp Cap/BL AZ - Cusp/BL
Jan.27,1998 00-14 BL(01-13) BL(02) Cap/BL AZ - Cusp/BL
Feb.6-7,1998 18-10 BL(18-06) cusp/BL(00-09 Cap/BL AZ - Cusp/BL
*Feb.22,1998 00-13 BL(01-12) cusp/BL(04-11) Cap/BL AZ - Cusp/BL
Feb.28-Mar1,1998 22-05 BL(22-02) BL(02) Cusp/BL AZ - Au/BL
*Mar.4,1998 17-23 BL(17-19) BL(20) Cusp/BL AZ - Cusp/BL
Mar.17,1998 00-09 BL(04-07) cusp/BL(00-03) Cusp/BL AZ - Cap/BL
Apr.20,1998 04-11 BL(07-10) cusp/BL(06) Cusp/BL AZ - Cap/BL
*May.16,1998 04-09 BL(06-08) cusp/BL(05-08) Cusp/BL AZ - Cap/BL
May.19-20,1998 23-05 BL(02-03) cusp/BL(00-03 Cusp/BL AZ - Cap/BL
Jun.26,1998 16-21 BL(18-19) BL(05-08) Cap AZ - Cap/BL
Jun.30,1998 19-01 BL(21-22) cusp/BL(21-24) Cap/BL AZ - Cap/BL
AZ - Interball-2 (Auroral Zone)
Magion-4 - Interball-1 subsatellite
* - the most interesting cases.

Ground segment correlation is needed. Due to Polar orbit correction in October 1997 the later constellations should be re-examined.

In the August 20, September 29-30 and October 05-07 cases we have rather unique S/C orbit constellations. In the September 29-30 case IMP-8 SW monitoring is critical. On October 05-07 Interball-1 will be close to the low latitude MP for very long period, the situations will repeat on January 15-17, 1998.

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