Subject: Administrative: Status of GOES-16 SEISS MPS-HI L1b data, --94eb2c1ac2543cb6970560b80656 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Topic: Status of GOES-16 SEISS MPS-HI L1b Data Date/Time Issued: December 19, 2017 2118 UTC Product(s) or Data Impacted: GOES-16 SEISS MPS-HI L1b Data Date/Time of Initial Impact: December 19, 2017 at 2115 UTC Date/Time of Expected End: N/A Length of Event: N/A Details/Specifics of Change: The GOES-R Peer Stakeholder - Product Validation Review for SEISS MPS-HI L1b data Provisional Maturity was held on December 8, 2017. As a result of this review, NOAA has confirmed that the SEISS MPS-HI L1b data are at Provisional Validation Maturity as of December 19, 2017. The MPS-HI L1b data product consists of 50 keV =E2=80=93 4 MeV electron flu= xes and 80 keV =E2=80=93 12 MeV proton fluxes. MPS-HI consists of 5 electron solid= -state (silicon detector) telescopes and 5 proton solid-state (silicon detector) telescopes with 30-degree full-width conical fields-of-view, arranged in a north-to-south fan with field-of-view centers separated by 35 degrees. Each electron telescope reports 10 differential channels plus a >2 MeV integral channel. Each proton telescope reports 7 channels in the 80 keV = =E2=80=93 1 MeV range and 4 channels in the 1-12 MeV range. In the latter energy range, the channels generally register counts above backgrounds only during solar energetic particle events. In addition, there are two dosimeters that distinguish dose from particles depositing < 1 MeV and > 1 MeV under domes of 250 and 100 mil aluminum shielding. Provisional validation means: - Validation activities are continuing and the general research community is encouraged to participate. - Severe algorithm anomalies are identified and under analysis. Solutions to anomalies are in development and testing. - Incremental product improvements may still be occurring. - Product performance has been demonstrated through analysis of a small number of independent measurements obtained from select locations, perio= ds, and associated ground truth or field campaign efforts. - Product analysis is sufficient to establish product performance relative to expectations (performance baseline). - Documentation of product performance exists that includes recommended remediation strategies for all anomalies and weaknesses. Any algorithm changes associated with severe anomalies have been documented, implement= ed, and tested. Users of the SEISS MPS-HI L1b data bear responsibility for inspecting the data and understanding the known caveats prior to use. Below is the list of caveats that have been identified and are under analysis. Solutions are in development and testing: 1. No MPS-HI L1b data prior to declaration of Provisional Maturity should be used. NCEI will reprocess and release the early mission data using t= he Provisional Maturity algorithm and look-up tables. 2. Pitch angles are not yet available since the GOES-16 Magnetometer data have not yet reached Provisional Maturity. 3. Electron telescope 2 exhibited unusually high levels of noise through early April. Since then, its behavior has been stable and consistent wi= th the other telescopes, but this is a watch item. 4. Preliminary cross-comparisons among the MPS-HI telescopes using one month of data indicate scale factors ranging from <1% to >50% depending = on the energy, species and telescope. These scale factors have not been applied to the data and will be revised following the application of an improved cross-comparison method to a longer period of data. 5. Preliminary comparisons between >2 MeV electron fluxes observed by GOES-16 MPS-HI and GOES-13 EPEAD indicate reasonable agreement. Remaini= ng differences may be due to the much larger field-of-view on GOES-13; a quantitative evaluation of this effect is planned. 6. Preliminary comparisons between GOES-16 MPS-HI electrons and GOES-13 MAGED electrons generally indicate good agreement, with some discrepanci= es, particularly between the lowest energy channels. The reasons for these discrepancies are being investigated. 7. Preliminary comparisons between GOES-16 MPS-HI protons and GOES-13 MAGPD protons indicate that MAGPD fluxes are a factor of 2-3 too low. The reas= ons for these discrepancies are being investigated. GOES-13 has been on-orb= it since June 2006, i.e. over eleven years, so radiation damage may be a factor. 8. Solar proton observations above 3.2 MeV (channels P10 and P11) are at least a factor of 2 lower than GOES-13 and -15 EPEAD observations. The reasons for these discrepancies are being investigated. 9. Comparisons between particle detectors with different energy channels must carefully estimate the effective energies of the channels. The broader the channels, the more sensitive such estimates are to assumptio= ns. Contact Information for Further Information: Kathryn Mozer at Kathryn.Mozer@noaa.gov. Web Site(s) for applicable information: See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages. See http://www.goes-r.gov/spacesegment/seiss.html for ABI specific information. This message was sent from ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request. --94eb2c1ac2543cb6970560b80656 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Topic= : Status of GOES-16 SEI= SS MPS-HI L1b Data

Date/Ti= me Issued: December 19, 2017 2118 UTC

Product(s) or Data Impacted: GOES-16 SEISS MPS-HI L1b Data

Date/Time of Initial Impact: December 19, 2= 017 at 2115 UTC

Date/Time of Ex= pected End: =C2=A0N/A

Length of Event: =C2=A0N/A

Details/Specifics of Change: The GOES-R Peer Stakeholder - Product Validation Review for= SEISS MPS-HI L1b data Provisional Maturity was held on December 8, 2017. A= s a result of this review, NOAA has confirmed that the SEISS MPS-HI L1b dat= a are at Provisional Validation Maturity as of December 19, 2017. =C2=A0


The MPS-HI L1b data product consists of 50 keV= =E2=80=93 4 MeV electron fluxes and 80 keV =E2=80=93 12 MeV proton fluxes.= =C2=A0 MPS-HI consists of 5 electron solid-state (silicon detector) telesco= pes and 5 proton solid-state (silicon detector) telescopes with 30-degree f= ull-width conical fields-of-view, arranged in a north-to-south fan with fie= ld-of-view centers separated by 35 degrees.

Eac= h electron telescope reports 10 differential channels plus a >2 MeV inte= gral channel.=C2=A0 Each proton telescope reports 7 channels in the 80 keV = =E2=80=93 1 MeV range and 4 channels in the 1-12 MeV range.=C2=A0 In the la= tter energy range, the channels generally register counts above backgrounds= only during solar energetic particle events.

I= n addition, there are two dosimeters that distinguish dose from particles d= epositing < 1 MeV and > 1 MeV under domes of 250 and 100 mil aluminum= shielding.


Provisional validation means:

  • Validation activities are continuing and the general= research community is encouraged to participate.

  • Severe algorithm anomalies are identified = and under analysis. Solutions to anomalies are in development and testing.<= /span>

  • Incremental produ= ct improvements may still be occurring.

  • Product performance has been demonstrated through an= alysis of a small number of independent measurements obtained from select l= ocations, periods, and associated ground truth or field campaign efforts.

  • Product analysis i= s sufficient to establish product performance relative to expectations (per= formance baseline).

  • Documentation of product performance exists that includes recommended re= mediation strategies for all anomalies and weaknesses. Any algorithm change= s associated with severe anomalies have been documented, implemented, and t= ested.


Users of the SEISS MPS-HI L= 1b data bear responsibility for inspecting the data and understanding the k= nown caveats prior to use.=C2=A0 Below is the list of caveats that have been identified and are under analy= sis. Solutions are in development and testing:

  1. No MPS-HI L1b dat= a prior to declaration of Provisional Maturity should be used.=C2=A0 NCEI w= ill reprocess and release the early mission data using the Provisional Matu= rity algorithm and look-up tables.

  2. Pitch angles are not yet available since the GOES-16 Magnetometer data = have not yet reached Provisional Maturity.

  3. Electron telescope 2 exhibited unusually high levels of noise t= hrough early April.=C2=A0 Since then, its behavior has been stable and cons= istent with the other telescopes, but this is a watch item.

    4. =

  4. Preliminary cross-comparisons among the MPS-HI= telescopes using one month of data indicate scale factors ranging from <= ;1% to >50% depending on the energy, species and telescope.=C2=A0 These = scale factors have not been appl= ied to the data and will be revised following the application of an improve= d cross-comparison method to a longer period of data.

  5. Preliminary comparisons between >2 MeV electron f= luxes observed by GOES-16 MPS-HI and GOES-13 EPEAD indicate reasonable agre= ement.=C2=A0 Remaining differences may be due to the much larger field-of-v= iew on GOES-13; a quantitative evaluation of this effect is planned.=

  6. Preliminary comparisons between GOES-= 16 MPS-HI electrons and GOES-13 MAGED electrons generally indicate good agr= eement, with some discrepancies, particularly between the lowest energy cha= nnels. The reasons for these discrepancies are being investigated. <= /p>

  7. Preliminary comparisons between GOES-1= 6 MPS-HI protons and GOES-13 MAGPD protons indicate that MAGPD fluxes are a= factor of 2-3 too low. The reasons for these discrepancies are being inves= tigated.=C2=A0 GOES-13 has been on-orbit since June 2006, i.e. over eleven = years, so radiation damage may be a factor.

  8. Solar proton observations above 3.2 MeV (channels P10 and P11)= are at least a factor of 2 lower than GOES-13 and -15 EPEAD observations.= =C2=A0 The reasons for these discrepancies are being investigated.

  9. Comparisons between particle detectors = with different energy channels must carefully estimate the effective energi= es of the channels.=C2=A0 The broader the channels, the more sensitive such= estimates are to assumptions.




Contact Information for Further Information: Kathryn Mozer at = Kathryn.Mozer@noaa.gov. =C2=A0

<= br>

Web Site(s) for applicable information: See http://www.s= sd.noaa.gov/PS/SATS/messages.html for this and = other satellite related messages. See http://www.goes-r.gov/spacesegment/sei= ss.html for ABI specific information.

This message was sent from ESPC.Notif= ication@noaa.gov. You have been sent this and o= ther notifications because you have opted in to receive it. If for any reas= on, you wish to unsubscribe, please contact ESPC Help Desk at = ESPCOperations@noaa.gov or (301) 817-3880. Please n= ote: it may take up to two business days to process your unsubscribe reques= t.


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