KD7LMO - ANSR


ANSR ANSR-7 Summary Photos Charts

ANSR-7 Flight Summary

Launch 29 June 2002, 1502 UTC, (8:02 AM MST)

Payloads ATV, Micro Beacon, and Payload Computer

Flight Summary

All payloads recovered in the open desert. Data and statistics recovered from Flight Data Recorder:

36.2 statue miles from the launch site on a heading of 312° magnetic.

Fight time 2:37:53, landed 1740 UTC, (10:40 AM MST)

Departed at 1380', landed at 1350'.

Peak altitude 85200'.

Average ascent rate 700'/minute. Average descent rate 2220'/minute. At touch down 1300'/minute.

Lowest internal temperature 31.4° F.

GPS maintained 99.87% 3D lock during flight. Average PDOP 1.33. Average of 11.7 tracked satellites.

Average bus voltage 8.3 volts.

Landing site.

Payload Performance

The following is the performance of each payload package.

Micro Beacon – Signal weak for a portion of the flight, otherwise operation nominal.

ATV - Operation nominal.

Payload Computer – Operation nominal. Received many contacts and good signal quality reports. Bad connector on internal power supply connection caused processor reset during flight.

Cut Down – Not in payload train. Defective relay prevented usage.

Lessons Learned

Weak signal on Micro Beacon. Solution – Most likely cause was a repaired antenna connector that should have been replaced.

Payload computer reset during flight caused by defective power supply connection. Solution – Replace connector.

Ground station unable to receive ATV signal. Other stations did report signal. Solution – Additional preflight testing to verify operation of ground station.

Payload computer and Micro Beacon Velcro covers came loose on rough landing. Solution – Utilize additional Velcro and safety wire/straps.

Some TNC systems unable to receive APRS packets from Micro Beacon. Solution – Possible problem with AX.25 protocol or timing. Will test interoperability with additional hardware.

Flight Data Recorder and Maps

	Flight Data Recorder contents as comma separated text (ASCII) NOTE: This file contains the complete flight recording in one second increments. Additional information on telemetry measurands included with Payload Computer - Data Logger
	Topographical Map, Complete flight.

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