December 1, 2020, Daytime Operation Report

2020_12_01_1st.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 daytime 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 daytime operations twice.
"CW custom operation(437.075MHz)",”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)”.

・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
1st : CW:S9[dB], Bus Voltage: 4.199 [V], Angular velocity: 7.530 [deg./s]
2nd : CW:S9[dB], Bus Voltage: 4.178 [V], Angular velocity: 7.850 [deg./s]

1st:”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:31, SP:768, ESC:31, EP:1023)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 1069
VERTICAL POLARIZED WAVE : 696
radio interference : weak

2nd:”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:32, SP:0, ESC:32, EP:255)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 409
VERTICAL POLARIZED WAVE : 26
radio interference : strong

○Next Operation Schedule
3rd : "CW custom operation(437.075MHz)", ”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:32, SP:256, ESC:32, EP:511)”.
4th : "CW custom operation(437.075MHz)", ”Video data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:31, SP:768, ESC:31, EP:1023)”.

2020/12/1      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    18:41:57 | 18:46:06 | 18:50:16
Azimuth      115.04  |   66.36   |  18.09
Elevation      0.02   |    8.72   |   -0.01
------------------------------------------------------------------------------------------
Time(JST)    20:13:43 | 20:19:11 | 20:24:47
Azimuth      180.03  |   260.78   |  342.11
Elevation      0.02   |    45.45   |   -0.03
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20335.61218794 .00004156 00000-0 16870-3 0 9991
2 43937 97.2054 20.5391 0023638 1.4433 358.6869 15.24875730103957

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