September 30, 2020, Daytime Operation Report

2020_09_30_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: 4.178 [V], Angular velocity: 52.27 [deg./s]
2nd : CW:S9[dB], Bus Voltage: 4.141 [V], Angular velocity: 52.40 [deg./s]

1st:”Image data downlink (FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:42, SP:512, ESC:42, EP:767)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 1422
VERTICAL POLARIZED WAVE : 937
radio interference : strong

2nd:”Image data downlink (FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:43, SP:0, ESC:43, EP:255)”
Number of received packets
HORIZONTALLY POLARIZED WAVE :1789
VERTICAL POLARIZED WAVE : 956
radio interference : strong

○Next Operation Schedule
3rd : No operation.
4th : "CW custom operation(437.075MHz)", "Image data downlink(FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:43, SP:256, ESC:43, EP:511)".
5th : "CW custom operation(437.075MHz)", "Image data downlink(FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:43, SP:512, ESC:43, EP:767)".

2020/9/30      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    18:18:22 | 18:20:41 | 18:22:59
Azimuth      85.41  |   61.47   |  37.58
Elevation      0.00   |    1.89   |   0.00
------------------------------------------------------------------------------------------
Time(JST)    19:47:39 | 19:53:23 | 19:59:10
Azimuth      159.34  |   76.01   |  353.59
Elevation      0.02   |    58.73   |   -0.02
------------------------------------------------------------------------------------------
Time(JST)    21:23:19 | 21:27:18 | 21:31:19
Azimuth      225.83  |   269.97   |  314.33
Elevation      0.01   |    6.72   |   -0.01
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20273.39693467 .00002809 00000-0 11589-3 0 9996
2 43937 97.2162 320.6431 0022907 213.4269 146.5524 15.24616420 94473

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