[amsat-bb] ARISSat-1 battery

Hi all. The ARISSat team seem to have reached the conclusion that the Silver Zinc battery technology is not really suited for an orbiting satellite with a 55 / 35 minute charge and discharge cycle. I wonder if a couple of small Lithium polymer battery packs would be a suitable replacement for

[amsat-bb] ARISSat-1 Battery

Dear Friends, This is speculation but it looks to me like we have had a bit of good luck regarding the battery. Looking at the battery voltage from deployment on... Up until Aug 11, the battery seems to be deteriorating "normally" with a slight downtrend in the max voltage as expected. But on A

[amsat-bb] ARISSat-1 battery situation

Hi to everybody, I've a question about the ARISSat-1 battery situation : If the battery goes dead (case 1: open circuit, case 2: short circuit, case 3: current is absorbed from panels but not hold from battery) which will be the behavior of the satellite? Thanks and 73 Giulio AB2VY Sent from my

[amsat-bb] ARISSat-1 battery situation

Hi to everybody, I've a question aboute the ARISSat-1 battery situation : If the battery goes dead (case 1: open circuit, case 2 :short circuit, case 3 current is absorbed from panels but not hold) which will be behavior of the satellite? Thanks and 73 Giulio AB2VY Sent from my BlackBerry® wire

[amsat-bb] ARISSat-1 battery eclipse voltage decreasing

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 la

[amsat-bb] ARISSat-1 Battery Condition

>> ... Battery voltage around 33V status - charging. -David G0MRF Wow - I showed the battery at 28.891 during a pass last weekend. Solar panels are going their jobs! Sorry ... too old for this much excitement in one day ... Clint Bradford http://web.me.com/clintbradford/k6lcs/EVA29-1.html ___

[amsat-bb] ARISSat-1 Battery Charging

At the top of today's schedule for the Russians aboard the ISS ... "Operations and experiments on the International Space Station July 27, 2011 - On July 27 the Russian segment of International Space Station, astronauts plan to continue their work to prepare for spacewalk (leak check suits, pi

[amsat-bb] ARISSat-1 Battery

OK - Charging of the ARISSat-1's battery is scheduled for July 27. And a test this weekend. Will the battery be charged a second time - before EVA-29 on August 3? What is the expected/anticipated battery "charge state" to be after the July 30 test? Good enough for deployment without another cha

[amsat-bb] ARISSat-1 - Battery Failure

RadioSkaf's Alexander, RA3WOK, just wrote me that they do, indeed, suspect battery failure of the ARISSat-1. Investigation and plans for deployment continue. "According to preliminary information the problem is a failure of the battery ... " "In the near future, batteries will be on Earth. It c

[amsat-bb] ARISSat-1 battery.

Hi Nitin / Vince. Although the non appearance of ARISSat-1 has been a little disappointing, in the overall scheme of things we are still looking at a major AMSAT achievement here. There is after all a satellite awaiting 'launch' on the ISS. We know it's a success because so many people ha