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Fw: [MOM - 07/08/2003 15:30 EST] Updated Observations



Here's a good chance to test the receive sensitivity of your system.

AAUSAT has been heard, but it take's a pretty good system to hear it -
DTUSAT as well as CANX-1 have yet to be heard.

If you can assist, these guys would I'm sure appreciate it - and it would
show that AMSAT wants to work with the Universities - who knows, maybe we
can convince them to put a linear transponder on a bigger bird when they
build one.

BTW, I have no connection to these Universities.

73's


Don Woodward
KD4APP
AMSAT 33535
kd4app@amsat.org
http://kd4app.webhop.org

----- Original Message ----- 
From: "Lars Alminde" <snip>
<snip>
Sent: Tuesday, July 08, 2003 16:37
Subject: Re: [MOM - 07/08/2003 15:30 EST] Updated Observations


In addition:
We,  i.e. AAU-cubesat, today on a highly elevated pass observed 5 beacon
signals in a row (record to date!),  while they still are to weak to be
decoded, some of them were now hearable on the radio speaker (new
development). Element set was 27842 from epoch 3188

It seems that we are converging on the satellittte with the new NORAD
updates.

Tomorrow we will have two real good passes (+70 degrees) in which we
will try to reconfirm these observations with the new element sets
(epoch 3189). And we will be able to replace some of our gndst.
equipment with more sensitive counterparts. In summary it's going the
right way for us, but it is a long road yet.

Kind Regards,
Lars Alminde, AAU-cubesat

On Tue, 2003-07-08 at 22:21, Freddy Pranajaya wrote:
> Dear All,
>
> Below is the summary of orbital status of each objects on the MOM
> Launch.  NORAD have consolidated their observation data and now uses
> 27xxx object calatog number.
>
> Comments and suggestions welcome.  Good luck and happy satellite-ing!
>
> Freddy Pranajaya
> Manager, CanX and NLS Programs
> University of Toronto Institute for Aerospace Studies
> 4925 Dufferin Street, Toronto, ON M3H-5T6, Canada
> 416-667-7890  Office/MCC
>
>
>
> --------  Latest Update 07/08/2003 15:30 EST
>
>
>
> Latest Position Estimates at 07/08/2003  15:30 EST:
> 27840 - Confirmed as BREEZE
> 27841 - Confirmed as MIMOSA
> 27842 - NLS-1 group
> 27843 - MOST (with XI-IV nearby?)
> 27844 - Cute-1 (with XI-IV nearby?)
> 27845 - QuakeSat
> 27846 - **UNCONFIRMED/POSSIBLY DUPLICATE**
> 27847 - **UNCONFIRMED/POSSIBLY DUPLICATE**
> 27848 - **UNCONFIRMED/POSSIBLY DUPLICATE**
> We are now working with NORAD Cheyenne Mountain and their phased-array
> radar system in Shemya, AK.  The Cobra Dane radar put up some special
> detection fences and it looks like they saw a total of 5 objects in the
> MOST orbit regime.  4 of these were quite small and no observations were
> generated, although they may be able to supply some data after
> post-processing.  Having seen only 5 objects when there should be 7 is a
> little bit of a concern.  This suggests that either some of the payloads
> are stuck together or are still too close to resolve.
>
>
>
> Contact Attempt Plan for Week of 07/08/2003:
> - UTIAS will continue to listen ahead of the satellite group with the
> antennas fixed to a point on the orbit path and will then track one
> object on each pass as the group rise above the horizon.  UTIAS ground
> station is now tracking one object at a time automatically, and is
> logging signals received, if any.  UTIAS is also looking into the
> possibility of using a radioastronomy dish to help track-and-pinpoint
> CanX-1.
> - AALBORG is looking into equipping their ground station with higher
> gain antenna.
>
>
>
> Latest Observation 07/08/2003:
> CanX-1, DTUsat remain missing.  Weak signals which are believed to be
> from AAUC are detected on or around 28742.
>
>
>
> NORAD Element Set
> Last Updated 07/08/2003 15:30 EST
>    #      Epoch         Incl    RAAN     Ecc       AoP      MA       RPD
> -------------------------------------------------------------------------
--
> 27840 3189.64925833 98.7189 196.6877 .0094093 240.1996 118.9814
14.38254904
> 27841 3189.07664813 96.8105 194.0904 .0379905 203.7776 154.5482
14.95451663
> 27842 3189.46746458 98.7252 196.2850 .0008325 265.2223  94.8010
14.20490074
> 27843 3188.97734471 98.7202 195.7846 .0009481 288.6186 071.3964
14.19918055
> 27844 3188.97672952 98.7243 195.7929 .0008563 283.3693 076.6536
14.20039510
> 27845 3189.04990693 98.7252 195.8632 .0008091 300.7204  59.3175
14.19517351
> 27846 3183.55070415 98.7282 190.4969 .0011652 334.4142  25.5477
14.20401842
> 27847 3183.97426148 98.7106 190.9135 .0017215 330.6038  29.4186
14.19943444
> 27848 3183.55198727 98.7631 190.5120 .0004812 336.7130 023.3827
14.19508099
>
>
>
> NORAD Millstone Hill (NORAD-MH) Element Set
> **NORAD-MH are now using the 27xxx numbers
> Last Updated 07/03/2003 21:00 EST
>
>    #      Epoch         Incl    RAAN     Ecc       AoP      MA       RPD
> -------------------------------------------------------------------------
--
> MEAN ELEMENTS:
> 27842 3184.90000000 98.7100 191.7210 .0003673 150.6508 265.8615
14.1983386
> OSCULATING ELEMENTS:
> 27842 3184.90000000 98.7122 191.7160 .0001061 162.6394 252.9213
14.1983386
>
> ECI VECTOR: (KM, M/SEC)
>      X         Y         Z        XDOT      YDOT      ZDOT       EPOCH
> -------------------------------------------------------------------------
--
> -4069.698    85.052  5936.307  5953.777  1869.146  4053.975 3184.9000000
>
>
>
>
> ======== Past Observations
>
>
> 07/07/2003
> *various* - Aalborg and UTIAS continues to detect weak periodic
> transmission consistent with AAUC beacons in the vicinity of
> 27842/27846.  No other updates are available from the other satellites.
>
>
> 07/04/2003
> *various* - attempts to contact CanX-1 were not successfull.  CanX-1
> team will now be concentrating on one object on each pass.  Before and
> after a pass, the antenna will be pointed to one location on the orbital
> track to listen for beacons.
> 10:00 EST - UofTokyo continues to receive strong signals from XI,
> however is unable to establish good FM downlink.
>
>
> 07/03/2003
> 15:55 EST - UTIAS observed beacons from Cute-1 at 27844 down to 0-deg,
> AOS 45-sec late, 15-sec late
> 12:45 EST - AALBORG obserted beacons at the AAUC frequency and period at
> 27842.
> 09:30 EST - UTIAS observed beacons at the AAUC frequency and period at
> 27842, no beacons detected at 27846.  Cute-1 detected at 27844.
>
>
> 07/02/2003
> 17:00 EST - UTIAS observed beacons at the AAUC frequency and period at
> 27846.
> 13:30 EST - Aalborg reported more signals at AAUC frequency using
> NORAD-MH 76998, stronger than what was received in 07/01 when using
> NORAD-CM 75906.
> 12:30 EST - QuakeFinder confirmed good success with using Russian
> Elements and that possibly QuakeSat might be 60 seconds behind.
> 12:00 EST - All objects are cataloged on the NASA website.  Conversation
> with NORAD-CH confirmed that some of the objects might be
>
> duplicates.
> Object Estimates as of this time/date:
> 27842/27846/75907 - **UNCONFIRMED** possibly duplicates of either Cute-I
> or XI-IV
> 27843/27847/75908 - MOST; others are possibly duplicates or
> **UNCONFIRMED** objects
> 27844/75909 - **UNCONFIRMED** possibly either Cute-I or XI-IV
> 27845/27848/75995 - **UNCONFIRMED** possibly QuakeSat (based on contact
> observation using Russian elements), and/or part of the NLS-1 group
> 76996/76997/76998 - **UNCONFIRMED** possibly NLS-1 group; contacts to
> these objects have not been re-established.
> 11:50 EST - Aalborg reported undecodable beacons at higher s/n at the
> right interval at the AAUC frequency, using 76998 from NORAD-MH.
>
>
> 07/01/2003
> 17:30 EST - NORAD-MH unable to re-acquire w/ 76996, 76997, 76998
> 15:00 EST - UTIAS/Aalborg considered a new hypothesis based on the NORAD
> Millstone Hills Radar Data, as follows:
> #27840 - Breeze
> #27841 - MIMOSA
> #75907 - QuakeSat
> #75909 - Cute-I
> #75908 - MOST
> #76995 - XI-IV (this coincides w/ #75910 from NORAD.CM)
> #76996 - DTUsat
> #76997 - CanX-1
> #76998 - AAUC
> 13:30 EST - Aalborg heard very faint beacons from AAUC Object
> Estimates as of this time/date (excl. confirmed objects):
> 75906 - NLS-1 group
> 75907 - XI-IV
> 75908 - MOST
> 75909 - Cute-I
> 75910 - QuakeSat
> 10:06 EST - UTIAS confirmed CW-Beacon from Cute-I; regain contact with
> MOST using 75908 elements.
> *various* - HAM operators reported repeated contacts w/ Cute-I, XI,
QuakeSat
>
>
> 06/30/2003
> *various* - QuakeFinder confirmed telemetry from QuakeSat/NLS-2; TITech
> first contact with Cute-I, confirmed deployment of
>
> solar-paddle
> UofTokyo confirmed XI-IV CW-beacon.
> 16:49 EST - UTIAS reported first contact with MOST
> 15:42 UST - First contact to MIMOSA reported
> 09:06 PST - QuakeFinder detected CW-Beacon from QuakeSat/NLS-2
> 11:49 EST - CanX-1, DTUSat, AAU Cubesat, Quakesat Separation
> 11:47 EST - XI-IV, Cute-I Separation
> 11:46 EST - MOST Separation
> 19:02 UTC - MIMOSA Separation
> 14:15:25.395 UTC - Lift-off of Rockot-MOM from Plesetsk Cosmodrome,
Russia
>
>
> ========
>
-- 
Lars Alminde <lalm00@control.auc.dk>

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