[AReU] AO40 at the TARC/BARS picnic.
w4tas
[email protected]
Sun, 2 Mar 2003 12:48:42 -0500
Here is the latest AO40 schedule for the transponder schedule for March,
2003.
From: Stacey E. Mills <[email protected]>
To: Amsat Bulletin Board <[email protected]>
Subject: [amsat-bb] AO-40 Update, 2003-03-02
Date: Sunday, March 02, 2003 12:16 PM
We are continuing to move ALON forward to keep the solar angle within
range. The current ALON / ALAT = 15/0 (nominal), and we are slowly moving
to ALON =20, but this will take about 6 more orbits. To compensate for the
change in squint the K-window has been moved. Further passband shifts will
come when we reach ALON=20.
N QST AMSAT AO-40 SCHEDULE 2003-03-02
MA 010 050 180 182 190 230 244 010
---------7-----1-----3-----6-----4-----5-----0-----7
S2/K-Tx | S | S | S/K | S/K | S | S | S |
MB | * | * | * | * | * | * | * |
RUDAK | | | | | | | |
V/U-Rx | U | U | U | U | U | U | V |
Uplink | | UL | | UL | UL | | |
Here is a provisional schedule of things to come:
We will continue slowly moving ALON forward toward 45 degrees during the
month of March. In early April we will begin raising ALAT toward 20 degs.
By mid-April we should be at ~ ALON/ALAT = 45/20.
Passband activities will be turned off at that time. We will drift for
approximately one month, arriving at ALON/ALAT = 315/20 in mid-May. We
will then lower ALAT to 0, restart passband activities (shifted to the
early part of the orbit), and begin moving back toward ALON = 0, chasing
the sun at the rate of about 1 deg/day. We should return to ALON/ALAT =
0/0 about June 20th. We can stay at ALON/ALAT = 0/0 until early October,
when the cycle starts over. Thus, expect the passbands to be off from
about mid-April to mid-May, but active at varying phases of the orbit, the
rest of the time. We should be in good position for field day, just
getting back to 0/0.
--W4SM for the AO-40 Command Team
--
_______________________________________________________________________
Stacey E. Mills, W4SM WWW: http://www.cstone.net/~w4sm/ham1.html
Charlottesville, VA PGP key: http://www.cstone.net/~w4sm/key
_______________________________________________________________________
----
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PERSONAL COMMENTS FROM W4TAS
Just for giggles, I will estimate the numbers to be 30/15 for March 22,
2003.
This will produce tracking data as represented below for the picnic. If
anyone
comes up with anything different please let me know.
51. AO-40
EST Date Time Azim/Elev Range Lat Long Doppler Phs/M Offp
22Mar2003 0915 107/ 12 53691 5S 16W -8418 69 43.0
22Mar2003 0926 108/ 14 54342 5S 18W -7896 72 42.3
22Mar2003 0937 109/ 15 54951 5S 20W -7393 74 41.7
22Mar2003 0948 110/ 17 55520 5S 22W -6907 77 41.0
22Mar2003 0959 111/ 19 56053 5S 24W -6474 79 40.4
22Mar2003 1010 112/ 21 56547 5S 26W -5984 81 39.8
22Mar2003 1021 113/ 23 57003 5S 28W -5545 84 39.2
22Mar2003 1032 114/ 24 57425 5S 30W -5119 86 38.6
22Mar2003 1043 116/ 26 57813 5S 32W -4707 89 38.1
22Mar2003 1054 117/ 28 58168 5S 34W -4306 91 37.6
22Mar2003 1105 118/ 30 58490 5S 36W -3916 94 37.0
22Mar2003 1116 120/ 31 58782 4S 38W -3537 96 36.5
22Mar2003 1127 122/ 33 59043 4S 40W -3167 99 36.0
22Mar2003 1138 123/ 35 59274 4S 42W -2807 101 35.5
22Mar2003 1149 125/ 37 59476 4S 44W -2455 104 35.1
22Mar2003 1200 127/ 38 59650 4S 46W -2110 106 34.6
22Mar2003 1211 129/ 40 59796 4S 48W -1773 108 34.1
22Mar2003 1222 131/ 42 59915 4S 50W -1443 111 33.7
22Mar2003 1233 133/ 43 60007 4S 53W -1118 113 33.2
22Mar2003 1244 136/ 45 60073 4S 55W -799 116 32.8
22Mar2003 1255 138/ 46 60113 4S 57W -485 118 32.4
22Mar2003 1306 141/ 47 60127 4S 59W -174 121 31.9
51. AO-40
EST Date Time Azim/Elev Range Lat Long Doppler Phs/M Offp
22Mar2003 1317 143/ 49 60117 4S 61W +132 123 31.5
22Mar2003 1328 146/ 50 60081 3S 63W +436 126 31.1
22Mar2003 1339 149/ 51 60020 3S 65W +737 128 30.7
22Mar2003 1350 153/ 52 59935 3S 67W +1036 131 30.3
22Mar2003 1401 156/ 53 59825 3S 69W +1334 133 29.9
22Mar2003 1412 160/ 54 59690 3S 72W +1632 135 29.5
22Mar2003 1423 163/ 55 59531 3S 74W +1929 138 29.1
22Mar2003 1434 167/ 55 59348 3S 76W +2227 140 28.6
22Mar2003 1445 171/ 56 59139 3S 78W +2527 143 28.2
22Mar2003 1456 175/ 56 58906 3S 80W +2828 145 27.8
22Mar2003 1507 179/ 56 58648 3S 82W +3132 148 27.4
22Mar2003 1518 184/ 56 58365 3S 84W +3438 150 27.0
22Mar2003 1529 188/ 56 58056 2S 86W +3749 153 26.6
22Mar2003 1540 192/ 56 57721 2S 88W +4065 155 26.2
22Mar2003 1551 196/ 56 57359 2S 90W +4400 158 25.8
22Mar2003 1602 199/ 55 56970 2S 92W +4714 160 25.3
22Mar2003 1613 203/ 54 56554 2S 94W +5048 163 24.9
22Mar2003 1624 207/ 54 56110 2S 96W +5389 165 24.5
22Mar2003 1635 210/ 53 55637 2S 98W +5739 167 24.0
22Mar2003 1646 213/ 52 55135 2S 100W +6098 170 23.6
22Mar2003 1657 217/ 51 54602 2S 102W +6468 172 23.1
22Mar2003 1708 219/ 50 54038 2S 104W +6849 175 22.6
51. AO-40
EST Date Time Azim/Elev Range Lat Long Doppler Phs/M Offp
22Mar2003 1719 222/ 48 53441 1S 106W +7242 177 22.2
22Mar2003 1730 225/ 47 52811 1S 108W +7649 180 21.7
22Mar2003 1741 227/ 46 52146 1S 110W +8070 182 21.2
22Mar2003 1752 230/ 45 51445 1S 112W +8507 185 20.7
22Mar2003 1803 232/ 43 50706 1S 114W +8962 187 20.1
22Mar2003 1814 234/ 42 49929 1S 116W +9435 190 19.6
22Mar2003 1825 236/ 40 49111 1S 118W +9929 192 19.0
22Mar2003 1836 238/ 39 48250 1S 119W +10445 194 18.5
22Mar2003 1847 240/ 38 47345 0S 121W +10985 197 17.9
22Mar2003 1858 241/ 36 46393 0S 123W +11552 199 17.3
22Mar2003 1909 243/ 35 45392 0S 125W +12148 202 16.7
22Mar2003 1920 244/ 33 44339 0N 126W +12776 204 16.0
22Mar2003 1931 246/ 32 43232 0N 128W +13440 207 15.4
22Mar2003 1942 247/ 30 42067 0N 129W +14142 209 14.8
22Mar2003 1953 248/ 29 40840 1N 131W +14889 212 14.1
22Mar2003 2004 249/ 28 39547 1N 132W +15684 214 13.5
22Mar2003 2015 250/ 27 38185 1N 133W +16535 217 12.8
22Mar2003 2026 251/ 25 36747 1N 134W +17448 219 12.3
22Mar2003 2037 252/ 24 35229 2N 135W +18433 221 11.7
22Mar2003 2048 253/ 23 33622 2N 136W +19502 224 11.3
22Mar2003 2059 254/ 22 31919 2N 137W +20667 226 11.1
22Mar2003 2110 254/ 22 30110 2N 137W +21948 229 11.0
As you can see, the squint numbers are not as good as originally
thought. The passband activity is not known but will likely be when
squints are favorable. The squint will be aroung 31 degrees at
apogee if these Alon/Alat numbers stand up to the test. If the
transponders are active at squints less that 35 degrees then they
will be turned on just before noon. That will be great and will give us
plenty of time to set up the stations and check them out.
If there are any comments or suggestions (or any hint of a huge
mistake) please let me know.
73
Tony
W4TAS