September 10, 2020, Nighttime Operation Report

20200910_4th.JPG
Hello, everyone. We are NEXUS development project team in Nihon University. Your receiving reports are used for confirmation of NEXUS state. Thank you for your cooperation. We will report the result of nighttime operation today.

CW custom mode
NEXUS are orbiting at CW custom mode now. CW format is following.
JS1YAVNEXUS04 (Sattime : 8words) (SW info : 2words) (Reset info : 10words) (Bat Vol : 4words) (Gyro x : 4words) (Gyro y : 4words) (Gyro z : 4words)
Total : 49words (characters)

○Operation Result
We performed nighttime operations twice.
"CW custom operation(437.075MHz)",”CAM ROM status downlink(Bus transmitter, GMSK9k6, 437.075MHz)”.

・CW Operation
For CW telemetry format, please have a look at the pdf below.
http://sat.aero.cst.nihon-u.ac.jp/nexus/download/NEXUS_CW_telemetry_format_e.pdf
4th : CW:S9[dB], Bus Voltage: 4.085 [V], Angular velocity: - [deg./s]
5th : CW:S9[dB], Bus Voltage: 4.085 [V], Angular velocity: - [deg./s]

4th:”CAM ROM status downlink(Bus transmitter, GMSK9k6, 437.075MHz)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 0
VERTICAL POLARIZED WAVE : 0
radio interference : strong

5th:”CAM ROM status downlink(Bus transmitter, GMSK9k6, 437.075MHz)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 0
VERTICAL POLARIZED WAVE : 0
radio interference : weak

○Next Operation Schedule
1st : ”CAM ROM status downlink(Bus transmitter, GMSK9k6, 437.075MHz)”
2nd : "CW custom operation(437.075MHz)"

2020/9/11      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    8:25:46 | 8:31:32 | 8:37:12
Azimuth      16.91  |   99.23   |  181.20
Elevation      0.00   |    49.58   |   -0.01
------------------------------------------------------------------------------------------
Time(JST)    10:00:20 | 10:04:38 | 10:08:55
Azimuth      342.03  |   293.65   |  244.88
Elevation      0.02   |    8.97   |   -0.01
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20253.70673715 .00000891 00000-0 38788-4 0 9993
2 43937 97.2187 301.6711 0022165 288.0197 71.8625 15.24564999 91476

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