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NOTAMSonde TypeSonde #Release Date/Time (UTC)FrequencyHelium initial psiHelium final psiTank size (BL300 or BL200)Rain Rate (1-5)Parachute UsedBalloon Weight (g)Balloon manufacture (prior to March 2023 likely totex)Weights Used (g)Direction of TravelDirection 2 (if any)Failure ReasonFailure Height (m)Range (km)Direction (deg, as reported in MW41 software)Launcher InitialsNotesECMWF Data Assimilation (only Anna will add to this column!)
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MZB 10/076RS41-SGPV054008618 Oct 2024 1740Z401.3500below levelBL2000lg200totex300User terminatedJW, JM, AL, CP, SB
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MZB 10/076RS41-SGP18 Oct 2024 1852Z800500BL2000lg200totex300User terminatedJM, AL, CP, SB
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MZB 10/076RS41-SGPV053091318 Oct 2024 2001Z401.3500below levelBL2000lg200totex300SEincreasing pressure27527102.7141.06JW, CP, SO, SY, CP
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MZB 01/103RS41-SGPV333010223 Jan 2025 2200Z405.524002200BL2000Large200Totex300SWSUser terminated418712.8JW, AW, JD, DA
Launch was terminated prematurely because of a wildfire that broke out nearby due to high winds and area was evacuated
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MZB 01/111RS41-SGPV332085825 Jan 2025 1500Z403650200BL2000Large200Totex300ENEincreasing pressure26586110.669.89RB
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MZB 01/111RS41-SGPV332072525 Jan 2025 1800Z403.3200exchangeBL2000Large200Totex300NEENE
Excessive missing GPS height
1187797.661.83RB
Had to restart computer to get sonde to respond to software. Balloon popped due to wind, refilled.
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MZB 01/111RS41-SGPV3330089
Failed humidity sensor during device setup
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MZB 01/111RS41-SGPV332072625 Jan 2025 2100Z403.716001320BL2000Large200Totex300NEENEincreasing pressure2431813666.81HW
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MZB 01/111RS41-SGPV333013426 Jan 2025 0300Z401.313201000BL2000.5Large200Totex300ENEincreasing pressure22969139.168.81JW
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MZB 01/111RS41-SGPV332086426 Jan 2025 0600Z1000650BL2000Large200Totex300ENEincreasing pressure21411139.468.6JW, SY, EM
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MZB 01/111RS41-SGPV332086026 Jan 2025 0900Z401.3650350BL2001Large200Totex300NEENE
excessive missing GPS height
1192798.573.69EM
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MZB 01/111RS41-SGPV333010326 Jan 2025 1500Z401.7350exchangeBL2000Large200Totex300ENEincreasing pressure22994122.671.56RB
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MZB 01/111RS41-SGPV332085426 Jan 2025 1800Z401.921501850BL2000Large200Totex300ENEincreasing pressure23587127.166.2RB
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MZB 01/111RS41-SGPV332085726 Jan 2025 2100Z402.118501500BL2000Large200Totex300ENE
excessive missing GPS height
1125591.163.65HW
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MZB 01/111RS41-SGPV333010727 Jan 2025 0300Z402.314801090BL2000Large200Totex300ENEsingal lost21534126.465.11HW
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MZB 01/111RS41-SGPV333013627 Jan 2025 0600Z403.11090800BL2001Large200Totex300NEsignal lost1260997.957.37EM
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MZB 02/090RS41-SGPV333009427 Feb 2025 1828Z404
not recorded
BL2000Large200Totex350WNEincreasing pressure2347730.152.29DJA, EM
Additional sensor package added under balloon
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MZB 02/090RS41-SGPV332085527 Feb 2025 1906Z401.3
not recorded
BL2000Large200Totex350WNEuser terminated2119442.952.84DJA, EM
Additional sensor package added under balloon
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MZB 03/004RS41-SGPV33208565 Mar 2025 1800Z401.316001200BL2000Large200Totex300NE
excessive missing GPS height
19306123.9337
DJA, RB with help from two contractors
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MZB 03/004RS41-SGPV06400195 Mar 2025 2100Z401.51200900BL2000Large200Totex300NE
excessive missing GPS height
14852115.3264RB
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MZB 03/004RS41-SGPV05309146 Mar 2025 0300Z401.7900600BL2000Large200Totex300NEweak or fading signal12937117.147.06SY
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MZB 03/004RS41-SGPV05310426 Mar 2025 0600Z401.9600350BL2000Large200Totex300NEweak or fading signal11802129.543.52SY
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MZB 03/004RS41-SGPV33300736 Mar 2025 0900Z403.13500BL2000Large200Totex300NEweak or fading signal1013984.550.17SY
very windy!
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MZB 03/004RS41-SGPV05507486 Mar 2025 1454Z401.324002100BL2000Large200Totex300EEweak or fading signal580572.892.51DJA
Wind made it difficult to determine proper helium fill. Released early to allow for public participation
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MZB 03/004RS41-SGPV06309686 Mar 2025 1800Z401.721001800BL2000Large200Totex300EEweak or fading signal826881.683.51DJA
Wind made it difficult to determine proper helium fill.
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MZB 03/004RS41-SGPV033208636 Mar 2025 2100Z401.318001500BL2000Large200Totex300EEweak or fading signal789170.878.51DJA
Used pressure to determine fill.
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MZB 03/004RS41-SGPV33208617 Mar 2025 0300Z401.515001250BL2000Large200Totex300increasing pressure
very windy alot of rain, did not fill the balloon up enough with He, early descent
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MZB 03/004RS41-SGPV33208537 Mar 2025 0330Z401.11250950BL2000Large200Totex300NE
excessive missing GPS height
832970.854.19SY
very windy a lot of rain, used pressure to determine fill.
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MZB 03/004RS41-SGPV33208627 Mar 2025 0600Z401.3900600BL2000Large200Totex300ENEweak or fading signal959478.79594SY
very windy, used pressure to determine fill
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MZB 04/011RS41-SGPV05400892 Mar 2025 1741Z401.324002100BL2000Large200Totex300SEEWeak or fading signal 944670107.87DJA,EM,LK
Outreach launch for SIO60
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MZB 05/011RS41-SGPV05400858 May 2025 2323Z400.5221001900BL2000Large200Totex300SEEterminated1888136.777.58DJA
Outreach launch
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MZB 05/040RS41-SGPV333007421 May 2025 1740Z401BL2000large200totexEterminatedEM
Outreach Launch
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MZB 05/040RS41-SGPV054008821 May 2025 1830Z404BL2000large200totexEterminated1894564.392.42EM
Outreach Launch + windborne's radiosonde
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MZB 05/040RS41-SGPV071046821 May 2025 1920Z402BL2000Eweak or fading signal959830.492.75
Vaisala Radiosonde on Windborne balloon
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MZB 05/040RS41-SGPV071046521 May 2025 2015Z401.5BL2000large200totexEweak or fading signal250496090.64EM
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RS41-SGPV333007523 July 2025 22:20ZNEterminated2584538.220.35
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