August 31, 2020, Daytime Operation Report

20200831_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,GMSK19k2,435.900MHz)”.

・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: 4.149 [V], Angular velocity: 37.04 [deg./s]
2nd : CW:S9[dB], Bus Voltage: 4.160 [V], Angular velocity: 37.08 [deg./s]
3rd : No operation.

1st:”Video data downlink (FSK transmitter,GMSK19k2,435.900MHz)(Size:2096896 SC_S:28, SSC:33, SP1004, ESC:33, EP:1023)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 803
VERTICAL POLARIZED WAVE : 598
radio interference : medium

2nd:”Video data downlink (FSK transmitter,GMSK19k2,435.900MHz)(Size:2096896 SC_S:28, SSC:33, SP224, ESC:33, EP:227)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 2233
VERTICAL POLARIZED WAVE : 1610
radio interference : strong

○Next Operation Schedule
3rd : No operation.
4th : "CW custom operation(437.075MHz)", "Video data downlink(FSK transmitter,GMSK19k2,435.900MHz)(Size:2096896 SC_S:28, SSC:34, SP256, ESC:34, EP:511)”.
5th : "CW custom operation(437.075MHz)", "Video data downlink(FSK transmitter,GMSK19k2,435.900MHz)(Size:2096896 SC_S:28, SSC:34, SP512, ESC:34, EP:767)”.

2020/8/31      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    18:25:23 | 18:27:54 | 18:30:26
Azimuth      88.82  |   61.87   |  35.02
Elevation      0.01   |    2.37   |   -0.01
------------------------------------------------------------------------------------------
Time(JST)    19:55:04 | 20:00:39 | 20:06:21
Azimuth      162.19  |   76.63   |  352.12
Elevation      0.03   |    67.95   |   -0.02
------------------------------------------------------------------------------------------
Time(JST)    21:31:10 | 21:34:39 | 21:38:12
Azimuth      232.04  |   271.08   |  310.14
Elevation      0.00   |    4.95   |   -0.01
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20243.59892831 .00001177 00000-0 50332-4 0 9998
2 43937 97.2203 291.9292 0022829 326.0788 33.8989 15.24540568 89931

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