December 02, 2020, Daytime Operation Report

20201202_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: 4.139 [V], Angular velocity: 7.090 [deg./s]
2nd : CW:S9[dB], Bus Voltage: 4.174 [V], Angular velocity: 7.668 [deg./s]

1st:”Image data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:32, SP:324, ESC:32, EP:511)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 725
VERTICAL POLARIZED WAVE : 662
radio interference : weak

2nd:”Image data downlink (FSK transmitter,GMSK4k8,435.900MHz)(Size:5987328 SC_S:22, SSC:32, SP:512, ESC:32, EP:767)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 777
VERTICAL POLARIZED WAVE : 473
radio interference : strong

○Next Operation Schedule
3rd : No operation.
4th : "CW custom operation(437.075MHz)", "QPSK Test Operation (QPSK transmitter, π/4 Shift QPSK 38k4, 435.900MHz)".
5th : "CW custom operation(437.075MHz)", "QPSK Test Operation (QPSK transmitter, π/4 Shift QPSK 38k4, 435.900MHz)".

2020/12/2      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    18:21:10 | 18:24:01 | 18:26:54
Azimuth      94.00  |   62.70   |  31.52
Elevation      0.00   |    3.23   |   0.00
------------------------------------------------------------------------------------------
Time(JST)    19:51:16 | 19:56:49 | 20:02:29
Azimuth      165.32  |   76.69   |  350.21
Elevation      0.03   |    80.94   |   -0.02
------------------------------------------------------------------------------------------
Time(JST)    21:27:50 | 21:30:51 | 21:33:54
Azimuth      238.21  |   271.58   |  304.99
Elevation      0.00   |    3.49   |   0.00
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20336.85898763 .00003921 00000-0 15930-3 0 9993
2 43937 97.2049 21.7387 0023500 356.9590 3.1501 15.24885111104140

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