September 28, 2020, Daytime Operation Report

20200928_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: 4.139 [V], Angular velocity: 50.73 [deg./s]
2nd : CW:S9[dB], Bus Voltage: 4.139 [V], Angular velocity: 50.47 [deg./s]

1st:”Image data downlink (FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:41, SP:512, ESC:41, EP:767)”
Number of received packets
HORIZONTALLY POLARIZED WAVE : 1332
VERTICAL POLARIZED WAVE : 1341
radio interference : strong

2nd:”Image data downlink (FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:41, SP:768, ESC:41, EP:1023)”
Number of received packets
HORIZONTALLY POLARIZED WAVE :581
VERTICAL POLARIZED WAVE : 196
radio interference : strong

○Next Operation Schedule
3rd : "CW custom operation(437.075MHz)", "Image data downlink(FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:41, SP:796, ESC:41, EP:955)".
4th : "CW custom operation(437.075MHz)", "Image data downlink(FSK transmitter,GMSK19k2,435.900MHz)(Size:2924032 SC_S:40, SSC:42, SP:0, ESC:42, EP:255)".

2020/9/28      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    18:59:30 | 19:04:20 | 19:09:11
Azimuth      125.98  |   68.67   |  11.72
Elevation      0.00   |    13.69   |   -0.01
------------------------------------------------------------------------------------------
Time(JST)    20:32:04 | 20:37:37 | 20:43:15
Azimuth      187.87  |   262.80   |  337.94
Elevation      0.02   |    31.77   |   -0.01
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 20271.09977806 .00001660 00000-0 69709-4 0 9995
2 43937 97.2162 318.4300 0022704 222.0259 137.9238 15.24603501 94127

この記事へのコメント