Category Archives: Lightsail-A

Atlas V ULTRASat Objects identified

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Ultrasat LauncherAtlas V ULTRASat Objects identified

By using detailed Doppler shift measurements, PA0DLO informs that LightSail is object 90726, ULTRASat 7, without any doubt.

This means that LightSail is actually object 40658, 2015-025H in the JSpOC catalog.

The preliminary initial assignments in the JSpOC catalog for the objects in this launch will need to be corrected:

PSAT = 90720 = ULTRASat 1 = 40652 = 2015-025B
LightSail = 90726 = ULTRASat 7 = 40658 = 2015-025H
BRICSat = 90729 = ULTRASat 10 = 40661 = 2015-025L

Source: PA0DLO, Amsat-BB

Lightsail-A active again

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LightSail was silent for eight days, but she is active again.

During this morning (31-05-2015 09:53 UTC) pass over The Netherlands I first received weak FSK signals and realized that the TLE I was using (ULTRASat2) didn’t match very well so I switched to ULTRASat8 and was able to decode 19 frames.

LghtSail-31052015-0958UTC

2015-05-31 10:03:12.770 UTC: from KK6HIT-1 to N6CP-X (UI, payload: 248 byte)
000 > 00 9C 6C 86 A0 5A B0 00 96 96 6C 90 92 A8 03 03 CC 45 00 00 
020 > F8 00 00 40 00 40 11 11 2D 81 41 93 21 81 41 93 24 C3 50 C6 
040 > 70 00 E4 D5 23 02 00 00 92 41 00 00 94 41 00 00 00 00 00 00 
060 > 00 00 80 99 89 40 F9 0F 29 3D 81 EB 51 40 29 20 2D 3D C0 4F 
080 > 9D 40 06 0E 90 3E A8 01 03 3C 00 00 00 00 A8 01 83 3B 9A 07 
100 > B0 BA BB 34 00 00 74 89 00 00 00 00 00 00 F7 75 00 00 02 00 
120 > 00 00 00 00 00 00 00 00 00 00 1D 39 10 0B 01 B2 07 00 DE 60 
140 > DF 20 DE A0 E0 A0 00 00 00 03 00 03 00 03 00 03 00 03 00 03 
160 > 00 03 00 03 09 8C 6D 30 0F 00 6D 60 08 58 6D 50 0F 30 6C F0 
180 > 14 D0 6C 40 00 50 6D 70 10 B0 6D 00 1C F8 6D 00 1C 00 01 0B 
200 > FB CF 01 15 00 15 00 1A 00 1A 00 20 00 25 00 1F 00 1C 00 18 
220 > 3F 00 3F 00 01 96 00 1A 00 7F 01 18 00 35 00 07 01 8A 00 DB 
240 > 00 25 00 E4 00 25 00 59 00 00 00 00 00 00 00 00 00 00 0F 00 
260 > 40 00 00 80 40

TLE

ULTRASat7 (LIGHTSAIL-A)
1 90726U          15154.58498645 +.00012439 +00000-0 +33532-3 0 00213
2 90726 055.0069 279.7147 0249269 215.8824 234.0970 15.12547949002116>
ULTRASat8
1 90727U          15150.55115000 +.00017130 +00000-0 +45788-3 0 00150
2 90727 055.0112 297.1659 0249189 205.9605 230.4519 15.12499718001507

Download IQ recording
Download kiss file

LightSail Telemetry

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LightSail Telemetry 21-05-2015 11:53 UTC

TLE

Lightsail-1
1 91919U 15999A   15140.67013889  .00040047  00000-0  10233-2 0 00004
2 91919 054.9991 339.9648 0250932 182.3369 074.3135 15.12540571000018

Telemetry

1:Fm KK6HIT-1 To N6CP-X  [14:04:11R]
  [IP] Fm 129.65.147.33 To 129.65.147.36 prot=UDP ttl=64 len=248
  [UDP] src_port:50000 dest_port:50800 len=228 data=220

LIghtSail-Spectrum

2015-05-21 12:04:11.880 UTC: from KK6HIT-1 to N6CP-X (UI, payload: 248 byte)
000 > 00 9C 6C 86 A0 5A B0 00 96 96 6C 90 92 A8 03 03 CC 45 00 00 
020 > F8 00 00 40 00 40 11 11 2D 81 41 93 21 81 41 93 24 C3 50 C6 
040 > 70 00 E4 39 0F 02 00 00 BA 41 00 00 C4 41 00 00 00 00 00 00 
060 > 00 00 FF 84 9B 40 FD 2F 17 3D C1 A9 51 40 20 D0 59 3D C0 4D 
080 > A2 40 49 A0 C1 3C A8 01 03 3C 74 42 E8 B9 A8 01 83 3B 74 42 
100 > E8 B9 ED 7D 00 00 EB DB 01 00 00 00 00 00 56 42 01 00 02 00 
120 > 00 00 00 00 00 00 0A 00 00 00 1E 3A 12 01 01 B2 07 00 16 A0 
140 > 17 60 18 20 18 60 00 00 00 04 00 04 00 04 00 04 00 04 00 04 
160 > 00 04 00 04 29 8C 6A 50 00 00 6A 70 FF F8 67 40 00 00 66 F0 
180 > 00 00 67 40 00 00 67 60 FF F8 67 10 FF F8 67 50 FF F8 FD CB 
200 > FF F8 00 0B 00 0B 00 12 00 14 00 2B 00 2D 00 25 00 25 00 0B 
220 > 00 00 00 00 00 63 01 7E 00 2F 00 BE 00 95 00 BD 00 80 01 03 
240 > 01 00 00 77 00 12 00 9C 00 00 00 00 00 00 00 00 00 00 0F 00 
260 > 40 00 00 80 40