Feb 26, 2021, Daytime Operation Report

20200226_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)","RSSI data downlink(QPSK transmitter, π/4 shift QPSK38k4, 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: 4.083 [V], Angular velocity: 76.33 [deg./s]
2nd : CW:S9[dB], Bus Voltage: 4.100 [V], Angular velocity: 76.20 [deg./s]

1st:"RSSI data downlink(QPSK transmitter, π/4 shift QPSK38k4, 435.900MHz)"
Number of received packets
HORIZONTALLY POLARIZED WAVE : 2517
VERTICAL POLARIZED WAVE : 3931
radio interference : strong

○Next Operation Schedule
3rd : "CW custom operation(437.075MHz)", "RSSI data downlink(QPSK transmitter, π/4 shift QPSK38k4, 435.900MHz)".
4th : ”Video data downlink(QPSK transmitter, π/4 shift QPSK38k4, 435.900MHz)(Size:5819392 SC_S:32, SSC:36, SP:0, ESC:36, EP:511)”

2021/2/26      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    18:45:03 | 18:49:37 | 18:54:12
Azimuth      124.52  |   68.59   |  12.78
Elevation      0.02   |    12.49   |   -0.01
------------------------------------------------------------------------------------------
Time(JST)    20:17:31 | 20:22:51 | 20:28:14
Azimuth      188.14  |   262.46   |  337.21
Elevation      0.02   |    30.16   |   0.00
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 21056.09018471 .00002641 00000-0 10698-3 0 9993
2 43937 97.1931 103.7109 0024851 53.8353 306.5179 15.25239722117138

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