SSOC Tohban's Report for Week 22 (24-May-99 -- 30-MAY-99) SSOC: K.Yaji, S.Watari KSC: R.Haga, R.Kano 0. Meeting Attendance H. Hudson, J. Khan, M. Sawa, S. Nagata, K. Yaji, T. Watanabe, H. Hara, T. Kosugi, Y. Ogawara -------------------------------------------------------------- 1. Solar Activity Solar activity is moderate in this week and two low-level M-class flares and more than ten C-class flares occurred. One of the M-class flares was observed in real time during the 2nd pass of Yohkohon 03:08 29-May-99(UT). -------------------------------------------------------------- 2. Standard Operations 2.1 SXT Table Uploads The following SXT tables were uploaded during week 22: ===================================================== JST Date Pass Table ID ===================================================== Mon 24-May-99 2 990524 P2 ARS1 STD Tue 25-May-99 2 990525 P2 ARS1 DARKCAL Wed 26-May-99 2 990526 P2 ARS2 ST+J103 Thu 27-May-99 2 990527 P2 ARS2 DF+J103 Fri 28-May-99 2 990528 P2 ARS2 ST+J103 Sat 29-May-99 2 990529 P2 ARS1 STD ===================================================== The "J103" in the name refers to JOP 103. 2.2 STT Timer setting STT timer was set during pass 1 on 26-MAY-99. -------------------------------------------------------------- 3. Special Operations 3.1 Spacecraft pointing OG 85(dec) (S/C E9.89 S2.77) was included in an OP which was uploaded on Monday (17-May). This off point OG was used at terminator opportunities till Thursday (27-May-99). -------------------------------------------------------------- 4. Errors and Problems 4.1 BCS Errors no error 4.2 SXT Errors no error -------------------------------------------------------------- 5. NASA Station Scheduling 5.1 Contact pass cancels/adds The following DSN/NASA passes were added/deleted: =================================================================== DSN/NASA Schedule Week Schedule Changes =================================================================== Realtime 22 1 pass deleted by SSOC Final 23 11 pass deleted by SSOC Preliminary 24 no cancellation Strawman 25 65 passes deleted by SSOC =================================================================== 5.2 Data Transmission from NASA Ground Stations -(From /home/flare1/yohkoh/dsn_corrupt/99_22)--------------- 131 80 2148 corrupted tape requested 19 May Closed/ correct data(25-May) 131 80 2329 corrupted tape requested 19 May Closed/ correct data 132 80 0111 corrupted tape requested 19 May Closed/ correct data 133 80 2035 corrupted tape requested 19 May Closed/ correct data 133 80 2216 corrupted tape requested 19 May Closed/ correct data 133 80 2358 corrupted tape requested 19 May Closed/ correct data 134 80 0141 corrupted tape requested 19 May Closed/ correct data 134 80 0324 corrupted tape requested 19 May Closed/ correct data 136 80 1937 corrupted tape requested 25 May Closed/ correct data 137 80 0226 corrupted tape requested 25 May no response tape requested 28 May 143 80 1754 corrupted tape requested 28 May -------------------------------------------------------------- 6. KSC Pass Conflicts and Schedule In week 23, 10 KSC contacts will be lost due to conflict with ASCA and AKEBONO. ASCA - 5 contacts , AKEBONO - 5 contacts -------------------------------------------------------------- 7. Hikitsugi Items 7.1 Tohbans for week 23 SSOC: M.Sawa S.Nagata KSC: R.Kano Y.Nakagawa 7.2 STT timer setting The next STT TIMER SET is expected at pass 1 on 1-Jun-99 (990531-1546). 7.3 Passwords of Mainframes Please change passwords of all three Mainframes on 1-Jun-99 7.4 Holiday Schedule The next holiday will be Sunday, 6-Jun-99 (JST). 7.5 Terminator Images for weekend OP If there is empty slot in the weekend OP, please add OG for terminator image to the weekend OP. Normally we can not do this, because there is no empty slot in the weekend OP. 7.6 KSC pass conflicts (from previous week) ASCA conflicts cause the loss of about 10 KSC contacts per week at this time. We do not know which contacts Yohkoh will lose until the weekly meeting. Santiago contacts occur on the same orbits as KSC contacts. Therefore, keep as many Santiago contacts as possible in the DSN Strawman and Preliminary Forecasts. 7.7 Mainframe Replace Mainframes will be replaced from 11-Jul(Sun) to 15-Jul(Thu). Caution when SSOC Tohbans make OPs. === END ===