FO-29 solar 7-14-102010年07月16日 06時34分

Re: FO-29 solar 7-14-10
From: Frank Wiesenmeyer
To: Mineo Wakita
Date: Wed, 14 Jul 2010 07:55:04 -0500

Enclosed is a new graph of FO-29 solar array current showing the now familiar
sudden jump in current.  I have only two ideas for what causes this. First,
it may indicate a dead area in one of the solar panels.  Second, there may be
some unusual solar illumination, where the sun is illuminating an area where
there is no solar panel such as the bottom attach fitting.  Idid not see this
type of pattern a year ago, so something has changed.  I would be very
interested in hearing what you or other users in the satellite community
think about the subject. 

Thank you for your interest in sharing these results with others who are
interested in FO-29.

TIsat-1 last character2010年07月16日 19時33分

Decoding table for TIsat-1 early beacon messages
During the early days of TIsat-1 mission, the beacon send continuously
during the day the message "HI HI HI TISAT" followed by a Morse character
indicating the temperature of the transmitter. The beacon is turned off
during eclipse to avoid stress of the batteries. This message is repeated
each 15s and is encoded with 17 WPM. The radio used as beacon has been
developped completely in SUPSI with the help of local HAMs.
The following table allows to translate the last character of the message
into the relative temperature expressed in Celsius degrees.

  Temperature  Morse character
  -10          F
  -5           B
  0            K
  +5           R
  +10          H
  +15          N
  +20          T
  +25          E
  +30          I
  +35          S
  +40          A
  +45          D
  +50          M
  +55          U
  +60          5
  +65          L

We invite to keep note of the received messages and temperatures.
A Web application to upload these information will be soon available.

StudSat live updates2010年07月16日 20時15分

JA ではまだ受信報告がありませんが、公式サイトでは受信広報されています。

12Jul10 09:22IST  PSLV is launched on 12th Jul 2010 at 09:22 AM IST from Sriharikota, AP, India.
12Jul10 09:44IST  STUDSAT Successfully separated from PSLV and it was put in to its 637kms
                  polar sun synchronous orbit.
12Jul10 11:02IST  STUDSAT beacon signal recieved at the tracking station in NMIT
12Jul10 21:52IST  STUDSAT beacon was heard my HAMs all over Bangalore, India. Thanks for all
                  the HAMs for getting back to STUDSAT. Kindly keep updating. 
14Jul10 22:20IST  STUDSAT Beacon was heard again.
15Jul10 08:30IST  NASTRAC received the Telemetry Data with some noise & Captured the FSK
                  modulated signal.
15Jul10 10:23IST  NASTRAC received the Telemetry Data with packets separated & confirmed
                  the satellite is in mission mode.

Satellite Completed the beacon mode of communication and has entered the mission mode,
where in it will transmit encrypted data at 437.505 MHz and will not send the beacon.