Radiosondes

General remarks: Site remained without power. Continued
operations using gas generator. Final flight conducted
at 1132 UTC (1032 LT).

Ascent Number: ubp0152
Synoptic Hour: 06 UTC
Scheduled Launch Time: 05:30 UTC
Actual Launch Time: 05:34 UTC 04:34 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 21.2
Minimum Pressure [hPa]: 45.8
Remarks: – none –

Ascent Number: ubp0153
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:32 UTC 10:32 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.4
Minimum Pressure [hPa]: 27.9
Remarks: FINAL SOUNDING

General remarks: Site remained without power. Continued
operations using gas generator.

Ascent Number: ubp0148
Synoptic Hour: 06 UTC
Scheduled Launch Time: 05:30 UTC
Actual Launch Time: 05:28 UTC 04:28 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 16.6
Minimum Pressure [hPa]: 99.0
Remarks: Thunderstorm with heavy rain ended at 0415 UTC
prior to launch. Light rain at release with in-cloud
lightning observed to distant north through north-east.
Termination due to early balloon burst.

Ascent Number: ubp0149
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:38 UTC 10:38 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 25.0
Minimum Pressure [hPa]: 25.3
Remarks: – none –

Ascent Number: ubp0150
Synoptic Hour: 18 UTC
Scheduled Launch Time: 17:30 UTC
Actual Launch Time: 17:42 UTC 16:42 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.6
Minimum Pressure [hPa]: 26.8
Remarks: Radiosonde lost GPS lock at release, but reacquired later. Heights questionable.

Ascent Number: ubp0151
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:38 UTC 22:38 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.0
Minimum Pressure [hPa]: 34.8
Remarks: Light rainshower at release. De-reeler jammed and
did not deploy.

General remarks: Site remained without power. Continued
operations using gas generator.

Ascent Number: ubp0144
Synoptic Hour: 06 UTC
Scheduled Launch Time: 05:30 UTC
Actual Launch Time: 05:36 UTC 04:36 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.6
Minimum Pressure [hPa]: 26.8
Remarks: Excessive frequency drift.

Ascent Number: ubp0145
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:37 UTC 10:37 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 26.6
Minimum Pressure [hPa]: 19.9
Remarks: – none –

Ascent Number: ubp0146
Synoptic Hour: 18 UTC
Scheduled Launch Time: 17:30 UTC
Actual Launch Time: 17:44 UTC 16:44 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.2
Minimum Pressure [hPa]: 28.3
Remarks: – none –

Ascent Number: ubp0147
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:33 UTC 22:33 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.5
Minimum Pressure [hPa]: 32.2
Remarks: – none –

General remarks: Site remained without power. Continued
operations using gas generator.

Ascent Number: ubp0140
Synoptic Hour: 06 UTC
Scheduled Launch Time: 05:30 UTC
Actual Launch Time: 05:30 UTC 04:30 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 25.3
Minimum Pressure [hPa]: 24.2
Remarks: – none –

Ascent Number: ubp0141
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:50 UTC 10:50 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 22.9
Minimum Pressure [hPa]: 35.5
Remarks: – none –

Ascent Number: ubp0142
Synoptic Hour: 18 UTC
Scheduled Launch Time: 17:30 UTC
Actual Launch Time: 17:59 UTC 16:59 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 22.6
Minimum Pressure [hPa]: 37.1
Remarks: Bad RH data.

Ascent Number: ubp0143a
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:51 UTC 22:51 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 21.5
Minimum Pressure [hPa]:
Remarks: Lost signal between 13.0 and 19.4 km.

Ascent Number: ubp0143b
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: * SCRUBBED *
Sonde Type: Sippican MarkII DGPS (LOS) + Chilled Mirror
Maximum Altitude [km]:
Minimum Pressure [hPa]:
Remarks: Planned dual w/MarkIIa, but scrubbed: no GPS
data records from sonde

General remarks: Unlike previous power outages that lasted only
a few hours, there was no recovery after yesterday evening’s
power failure. Local officials do not expect restoration for
at least a day or two. UAIRP team worked to set up emergency
gasoline generator, obtain fuel, and rebalance equipment power
load. Radiosonde releases resumed at 1553 UTC (1453 LT), but on
a reduced schedule of one flight every 6 hours (00, 06, 12, and
18 UTC). Reduced schedule implemented to insure generator would
not be overworked.

Ascent Number: ubp0138
Synoptic Hour: * FIRST FLIGHT – GENERATOR OPS *
Scheduled Launch Time: * FIRST FLIGHT – GENERATOR OPS *
Actual Launch Time: 15:53 UTC 14:53 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.1
Minimum Pressure [hPa]: 28.9
Remarks: On generator. Begin reduced flight schedule.

Ascent Number: ubp0139a
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:48 UTC 22:48 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 30.3
Minimum Pressure [hPa]: 11.4
Remarks: Dual w/ chilled mirror.

Ascent Number: ubp0139b
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:48 UTC 22:48 LT
Sonde Type: Sippican MarkII DGPS (LOS) + Chilled Mirror
Maximum Altitude [km]: 16.8
Minimum Pressure [hPa]: 96.3
Remarks: Dual w/ MarkIIa. Termination due to cessation of
telemetry although signal was good.

General remarks: Power failure at approximately 1840 UTC
(1740L) with no subsequent recovery.

Ascent Number: ubp0133
Synoptic Hour: 04 UTC
Scheduled Launch Time: 03:30 UTC
Actual Launch Time: 03:34 UTC 02:34 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.4
Minimum Pressure [hPa]: 32.5
Remarks: – none –

Ascent Number: ubp0134
Synoptic Hour: 08 UTC
Scheduled Launch Time: 07:30 UTC
Actual Launch Time: 07:33 UTC 06:33 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 22.3
Minimum Pressure [hPa]: 38.7
Remarks: – none –

Ascent Number: ubp0135
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:42 UTC 10:42 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.4
Minimum Pressure [hPa]: 32.7
Remarks: – none –

Ascent Number: ubp0136
Synoptic Hour: 16 UTC
Scheduled Launch Time: 15:30 UTC
Actual Launch Time: 15:32 UTC 14:32 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.3
Minimum Pressure [hPa]: 28.0
Remarks: – none –

Ascent Number: ubp0137
Synoptic Hour: 20 UTC
Scheduled Launch Time: 19:30 UTC
Actual Launch Time: 19:27 UTC 18:27 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 18.0
Minimum Pressure [hPa]: 79.2
Remarks: Running a single system on UPS, partial flight
successfully conducted before UPS battery gave out.

Ascent Number: ubp0127
Synoptic Hour: 04 UTC
Scheduled Launch Time: 03:30 UTC
Actual Launch Time: 03:36 UTC 02:36 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 22.3
Minimum Pressure [hPa]: 38.6
Remarks: – none –

Ascent Number: ubp0128
Synoptic Hour: 08 UTC
Scheduled Launch Time: 07:30 UTC
Actual Launch Time: 07:51 UTC 06:51 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.0
Minimum Pressure [hPa]: 34.6
Remarks: – none –

Ascent Number: ubp0129
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:48 UTC 10:48 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.8
Minimum Pressure [hPa]: 30.6
Remarks: – none –

Ascent Number: ubp0130
Synoptic Hour: 16 UTC
Scheduled Launch Time: 15:30 UTC
Actual Launch Time: 15:32 UTC 14:32 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.8
Minimum Pressure [hPa]: 30.4
Remarks: – none –

Ascent Number: ubp0131
Synoptic Hour: 20 UTC
Scheduled Launch Time: 19:30 UTC
Actual Launch Time: 19:32 UTC 18:32 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 20.9
Minimum Pressure [hPa]: 48.7
Remarks: – none –

Ascent Number: ubp0132
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:30 UTC 22:30 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 26.6
Minimum Pressure [hPa]: 19.7
Remarks: Bad RH data.

Ascent Number: ubp0121
Synoptic Hour: 04 UTC
Scheduled Launch Time: 03:30 UTC
Actual Launch Time: 03:37 UTC 02:37 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.4
Minimum Pressure [hPa]: 27.7
Remarks: – none –

Ascent Number: ubp0122
Synoptic Hour: 08 UTC
Scheduled Launch Time: 07:30 UTC
Actual Launch Time: 07:35 UTC 06:35 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 24.3
Minimum Pressure [hPa]: 28.3
Remarks: – none –

Ascent Number: ubp0123
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:43 UTC 10:43 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 25.2
Minimum Pressure [hPa]: 24.8
Remarks: – none –

Ascent Number: ubp0124
Synoptic Hour: 16 UTC
Scheduled Launch Time: 15:30 UTC
Actual Launch Time: 15:34 UTC 14:34 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.8
Minimum Pressure [hPa]: 30.4
Remarks: – none –

Ascent Number: ubp0125
Synoptic Hour: 20 UTC
Scheduled Launch Time: 19:30 UTC
Actual Launch Time: 19:31 UTC 18:31 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.0
Minimum Pressure [hPa]: 34.7
Remarks: – none –

Ascent Number: ubp0126a
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:48 UTC 22:48 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 31.8
Minimum Pressure [hPa]: 9.1
Remarks: – none –

Ascent Number: ubp0126b
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: * SCRUBBED *
Sonde Type: Sippican MarkII DGPS (LOS) + Chilled Mirror
Maximum Altitude [km]:
Minimum Pressure [hPa]:
Remarks: Planned dual w/Mark IIa, but scrubbed: no GPS
lockup on ground.

Ascent Number: ubp0115
Synoptic Hour: 04 UTC
Scheduled Launch Time: 03:30 UTC
Actual Launch Time: 03:34 UTC 02:34 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 25.0
Minimum Pressure [hPa]: 22.1
Remarks: – none –

Ascent Number: ubp0116
Synoptic Hour: 08 UTC
Scheduled Launch Time: 07:30 UTC
Actual Launch Time: 07:41 UTC 06:41 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.4
Minimum Pressure [hPa]: 32.6
Remarks: – none –

Ascent Number: ubp0117
Synoptic Hour: 12 UTC
Scheduled Launch Time: 11:30 UTC
Actual Launch Time: 11:35 UTC 10:35 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 22.8
Minimum Pressure [hPa]: 35.6
Remarks: – none –

Ascent Number: ubp0118
Synoptic Hour: 16 UTC
Scheduled Launch Time: 15:30 UTC
Actual Launch Time: 15:33 UTC 14:33 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 23.8
Minimum Pressure [hPa]: 30.5
Remarks: – none –

Ascent Number: ubp0119
Synoptic Hour: 20 UTC
Scheduled Launch Time: 19:30 UTC
Actual Launch Time: 19:31 UTC 18:31 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 22.3
Minimum Pressure [hPa]: 39.0
Remarks: – none –

Ascent Number: ubp0120a
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:51 UTC 22:51 LT
Sonde Type: Sippican MarkIIa DGPS (LOS)
Maximum Altitude [km]: 27.0
Minimum Pressure [hPa]: 18.8
Remarks: Dual w/ chilled mirror. Termination due
to signal loss at burst.

Ascent Number: ubp0120b
Synoptic Hour: 00 UTC
Scheduled Launch Time: 23:30 UTC
Actual Launch Time: 23:51 UTC 22:51 LT
Sonde Type: Sippican MarkII DGPS (LOS) + Chilled Mirror
Maximum Altitude [km]: 25.6
Minimum Pressure [hPa]: 23.2
Remarks: Dual w/ MarkIIa. Termination due to signal loss.