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arissat-1怎么个情况?????? [复制链接]

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离线BG2TOS
 
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1749
只看楼主 倒序阅读 0楼 发表于: 2011-08-13
都没听到信号   怎么个情况
离线bd5rv
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只看该作者 1楼 发表于: 2011-08-13
没什么情况,各地又都报告听到了。

arissat-1的电池不适合多次充放电,是用来俄罗斯方面提供用来做实验的,我估计会死得很快。现在已经报告说电池充放电的时间大幅度延长,并且放电时电压下降的速率增快。所以高功率模式也就这几天用用,过些天电池不行了就会转入低功率模式。

你可以从下面这个链接看到电池电压的情况。

http://www.arissat1.org/v3/index.php?option=com_content&view=section&layout=blog&id=13&itemid=134
离线BG2TOS
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1749
只看该作者 2楼 发表于: 2011-08-13
'
没什么情况,各地又都报告听到了。
arissat-1的电池不适合多次充放电,是用来俄罗斯方面提供用来做实验的,我估计会死得很快。现在已经报告说电池充放电的时间大幅度延长,并且放电时电压下降的速率增快。所以高功率模式也就这几天用用,过些天电池不行了就会转入低功率模式。
你可以从下面这个链接看到电池电压的情况。
http://www.arissat1.org/v3/index.php?option=com_content&view=section&layout=blog&id=13&itemid=134
'


不由得让我想到了ao-51 ....     再次膜拜一下这颗04年的.现在还在工作的.星
离线BG2TOS
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1749
只看该作者 3楼 发表于: 2011-08-13
北京时间20:50分 接收到的
在线bd8te
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4255
只看该作者 4楼 发表于: 2011-08-13
今天晚上收到了
离线BH1IEO
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只看该作者 5楼 发表于: 2011-08-14
emergency power/high power/low power mode
the satellite's power system monitors the battery voltage and switches between high power mode (continuous transmission) when sunlight is charging the battery and low power mode (40 seconds transmit/2 minutes idle) when in eclipse. the satellite experienced a reset during an eclipse period 11 aug (i.e. met reset to 0). once a reset occurs the 15 minute delay timers start. at the end of that delay the battery voltage is sampled to determine whether to go into low power, high power or emergency power. please monitor the arissat1.org page for the latest news.

telemetry data shows that the arissat-1 battery voltage is decreasing each eclipse period. it therefore is taking longer for the battery to charge up to 32.5v to allow the switch from low power to high power when the satellite enters an illumination period.

kenneth ransom, n5vho has plotted the battery min/max for the last 8 days. the data shows that the battery voltage is decreasing at a faster rate than expected. the effect of this is that arissat-1/kedr remains in low power mode for a period of time after exiting eclipse. the team recommends that users take advantage of the high power mode as much as possible over the next few days.