Satellite passes

Note

Updated 2023-06-03T12:43:31.749954.

Here are some details for the satellites we’re likely to work during Field Day. The information is taken primarily from Clint K6LCS’s website, with thanks. The frequencies in the tables below contain uplinks and downlinks, with Doppler shift taken into account for aquisition of signal (AOS) and loss of signal (LOS) times.

Passes

Satellite	AOS Time	AOS Az	MOS Time	MOS Az	MOS El	LOS Time	LOS Az

Satellite information

ISS cross-band repeater

	RX	TX	TX Tone
AOS	145.990	437.810	67.0
Overhead	145.990	437.800	67.0
LOS	145.990	437.790	67.0

SO-50

SO-50’s ten-minute timer can be restarted by transmitting a two-second carrier with a tone of 74.4 Hz.

	RX	TX	TX Tone
Arm timer		145.850	74.4
AOS	436.805	145.850	67.0
Overhead	436.795	145.850	67.0
LOS	436.785	145.850	67.0

AO-91

AO-91 is only active when in sunlight, so night passes are not possible.

	RX	TX	TX Tone
AOS	145.960	435.240	67.0
Overhead	145.960	435.250	67.0
LOS	145.960	435.260	67.0

PO-101

PO-101 is on a schedule.

	RX	TX	TX Tone
AOS	145.900	437.490	141.3
Overhead	145.900	437.500	141.3
LOS	145.900	437.510	141.3

AO-27

AO-27 is active for about four minutes at a time.

	RX	TX	TX Tone
AOS	145.850	436.785	67.0
Overhead	145.850	436.795	67.0
LOS	145.850	436.805	67.0