October 25, 2019, Nighttime Operation Report

2019_10_25_4th.JPGHello, 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 Nighttime 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 a Nighttime operation twice.
"CW custom operation(437.075MHz)" , "HK data downlink(Bus Transmitter GMSK9k6 437.05MHz,Data block number,2)".

・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
3rd : CW:S9[dB], Bus Voltage: 4.108[V], Angular velocity: 32.47[deg./s]
4th : CW:S9[dB], Bus Voltage: 4.100[V], Angular velocity: 32.26[deg./s]

・"HK data downlink(Bus Transmitter GMSK9k6 437.05MHz,Data block number,2)"
3rd:
HORIZONTALLY POLARIZED WAVE : 548
VERTICAL POLARIZED WAVE : 568
radio interference:weak

4th:
HORIZONTALLY POLARIZED WAVE : 227
VERTICAL POLARIZED WAVE : 364
radio interference:weak

○Next Operation Schedule
1st:"CW custom operation(437.075MHz)" , "Move shooting command uplink"
2nd:"CW custom operation(437.075MHz)" , "Linear transponder operation in Washington D.C.(America) command Uplink"

2019/10/26      AOS     |       PE      |      LOS
------------------------------------------------------------------------------------------
Time(JST)    7:45:01 | 7:48:44 | 7:52:26
Azimuth      49.13  |   89.48   |  129.75
Elevation      0.02   |    5.44   |   -0.01
------------------------------------------------------------------------------------------
Time(JST)    9:16:56 | 9:22:45 | 9:28:32
Azimuth      8.23  |   283.13   |  197.63
Elevation      0.01   |    69.72   |   -0.01
------------------------------------------------------------------------------------------

○Latest TLE
1 43937U 19003F 19298.14628015 .00000977 00000-0 43169-4 0 9995
2 43937 97.2624 352.0874 0023884 342.6730 74.1512 15.23815102 42641

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