ff 81 e8 03 31 00 00 00 Header e8 79 Header Checksum 94 d9 00 00 Set Time 2c 02 seqno 2c 02 Set Mes seqno 1c 00 Nav Sol validity bits 00 00 Nav Sol type bits 00 00 Num Meas in sol 00 00 Polar Nav 2e 03 GPS Week 2b 02 00 00 GPS sec from epoch (time of week) 00 00 00 00 GPS nanosec from epoch 0d 00 UTC day 08 00 UTC month cb 07 UTC year 00 00 UTC hours 09 00 UTC minutes 04 00 UTC seconds e3 c9 9a 3b UTC Nanoseconds from epoch 00 00 00 00 Latitude 00 00 00 00 Longitude 00 00 00 00 Height 08 07 Geoidal sep 00 00 00 00 Ground Speed 00 00 True Course a0 fa Mag var 00 00 climb rate 00 00 map datum c0 40 d9 12 expected HPE 90 d0 03 00 expected VPE 00 a3 e1 11 expected time error 10 27 expected HVE 00 00 00 00 clock bias 00 a3 e1 11 clock sdev 00 00 00 00 clock drift e0 93 04 00 clock drift sdev ab c4 data checksum ff 81 e8 03 31 00 00 00 e8 79 24 e8 02 00 70 07 70 07 1c 00 02 00 00 00 00 00 4c 04 f3 61 01 00 41 e3 96 0f 05 00 02 00 d1 07 01 00 09 00 3a 00 46 e3 96 0f ab 25 e5 01 3a 27 fa f4 00 00 00 00 4d f6 00 00 00 00 00 00 e8 05 00 00 00 00 40 84 87 06 90 d0 03 00 00 a3 e1 11 10 27 00 00 00 00 00 a3 e1 11 00 00 00 00 e0 93 04 00 c4 f4 FF 81 E8 03 31 \0 \0 \0 E8 y 8 9C 16 01 G I G I \b