| R# | Site | Serial Number | Measurement | Start Date | Start Time | End Date | End Time | Data Quality Statement |
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| 1 | BMS | | Downwelling CG4 | 09/29/2023 | 12:40:00 | 09/29/2023 | 13:55:00 | Due to an NREL-wide power outage caused by Xcel Energy, The following BMS instruments were not pointing at the sun during this time: Direct CHP-2, NIP, DR02, RG780, TWC, LI-201, LI-190; and the following instruments were un-shaded: Diffuse SR25, CM22-1, CG4. |
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| 2 | BMS | | Downwelling CG4 | 12/01/2022 | 12:08:00 | 12/01/2022 | 13:01:00 | Due to BMS middle sci-tec backup battery replacement (which requires soldering), The following BMS instruments were not pointing at the sun during this time: Direct CHP-2, NIP, DR02, RG780, TWC, LI-201, LI-190; and the following instruments were un-shaded: Diffuse SR25, CM22-1, CG4. However automatic substitution was enabled for the CHP1-2, SR25, and CM22-1. |
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| 3 | BMS | | Downwelling CG4 | 11/22/2022 | 00:00:00 | 11/23/2022 | 23:59:00 | Due to BMS middle sci-tec failure, The following BMS instruments were not exactly pointing at the sun during this time: Direct CHP-2, NIP, DR02, RG780, TWC, LI-201, LI-190; and the following instruments were just barely shaded: Diffuse SR25, CM22-1, CG4. On 11/23/2022, 11/22/2022 data for CHP1-2, NIP, SR25, and CM22-1 were replaced with primary measurements from south tracker. Note that data on 11/23/2022 were automatically substituded at the logger during middle tracker replacement. |
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| 4 | BMS | | Downwelling CG4 | 08/22/2022 | 00:00:00 | 08/25/2022 | 08:03:00 | Due to BMS middle sci-tec failure, The following BMS instruments were not pointing at the sun during this time: Direct CHP-2, NIP, DR02, RG780, TWC, LI-201, LI-190; and the following instruments were un-shaded: Diffuse SR25, CM22-1, CG4. However automatic substitution was enabled for the CHP1-2, NIP, SR25, and CM22-1. |
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| 5 | BMS | | Downwelling CG4 | 08/21/2022 | 00:00:00 | 08/21/2022 | 23:59:00 | Due to BMS middle sci-tec failure, The following BMS instruments were not pointing at the sun during this time: Direct CHP-2, NIP, DR02, RG780, TWC, LI-201, LI-190; and the following instruments were un-shaded: Diffuse SR25, CM22-1, CG4. On 9/14/2022 data for CHP1-2, NIP, SR25, and CM22-1 were replaced with primary measurements from south tracker (which were also reconstucted). |
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| 6 | BMS | | Downwelling CG4 | 03/15/2019 | 11:20:00 | 03/15/2019 | 13:00:00 | The BMS Pyrgeometers (PIR and CG4) were being troubleshot during this time. A problem was discovered with the PIR cable, however there will be a few bogus or missing CG4 values during this time. |
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| 7 | BMS | | Downwelling CG4 | 03/09/2019 | 08:40:00 | 03/09/2019 | 13:01:00 | Due to a scheduled NREL/SRRL power outage, to install power meters on the SRRL building, The following BMS instruments were not pointing at the sun during this time: Direct NIP, LI-201, LI-190, NIP RG780, TWC, DR02; and the following instruments were un-shaded: CG4. |
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| 8 | BMS | | Downwelling CG4 | 01/17/2017 | 07:15:00 | 01/17/2017 | 08:56:00 | Due to a tripped GFCI powering the Sci-Tec tracker, The following BMS instruments were not pointing at the sun during this time: Direct CHP1 #2, NIP, DR02, LI-201, LI-190, NIP RG780, TWC; and the following instruments were un-shaded: Diffuse CM22 #1, CMP11, CG4. |
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| 9 | BMS | | Downwelling CG4 | 05/02/2015 | 09:00:00 | 05/02/2015 | 18:53:00 | Due to a snagged signal cable on the Sci-Tec tracker, The following BMS instruments were not pointing at the sun during this time: Direct NIP #1, LI-201, LI-190, NIP RG780, TWC; and the following instruments were un-shaded: Diffuse CM22, CMP11, CG4. |
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| 10 | BMS | | Downwelling CG4 | 12/21/2013 | 07:00:00 | 12/21/2013 | 16:22:00 | Due to a scheduled NREL power outage, to upgrade campus electrical infrastructure, The following BMS instruments were not pointing at the sun during this time: Direct NIP #1, LI-201, LI-190, NIP RG780, TWC; and the following instruments were un-shaded: Diffuse CM22, CUV4, CG4. The Middle Sci-Tec tracker for these instruments were temporarily put on a secondary UPS which failed immediately. |
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| 11 | BMS | | Downwelling CG4 | 03/02/2013 | 13:06:00 | 03/02/2013 | 18:24:00 | Due to a scheduled NREL power outage, to upgrade campus power capacity, The following BMS instruments were not pointing at the sun during this time: Direct CH1, NIP #2, NIP #1, LI-201, NIP RG780, CUVA2, CUVB2, TWC; and the following instruments were un-shaded: Diffuse 8-48, PSP, CM22, CUV4, PIR, CG4. The Sci-Tec tracker for these insruments are protected by UPS, however the battery depleted at 13:06 MST (the power outage started at 8:06 MST) |
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| 12 | BMS | | Downwelling CG4 | 05/26/2012 | 06:15:00 | 05/26/2012 | 07:12:00 | Due to a planned power outage for SRRL electrical work, the following BMS instruments were not following the sun: NIP #1, RG780 NIP, LI-201, TWC Photometer and the following instruments were not shaded CM22, CUV4, and CG4. |
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| 13 | BMS | | Downwelling CG4 | 09/08/2011 | 08:23:00 | 09/08/2011 | 09:38:00 | Due to a planned power outage for SRRL construction activities, the following BMS instruments were not following the sun: NIP #1, RG780 NIP, LI-201, TWC Photometer and the following instruments were not shaded CM22, CUV4, and CG4. |
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| 14 | BMS | | Downwelling CG4 | 05/07/2011 | 05:55:00 | 05/09/2011 | 07:58:00 | There was a planned power outage for SRRL construction activities that started at 5:18 MST. Unfortunately, the backup generator provided to SRRL was providing bad power to the UPS powering the Sci-Tec trackers, therefore the UPS failed at 5:55 MST. Unfortunately, when normal AC power was restored at 11:45 MST, the Sci-Tec trackers had lost all their configuration due to UPS cycling on and off during the outage, therefore were not tracking. The tracker settings were restored on May 9 at 7:58 MST. The following BMS instruments were not pointing at the sun during this time: Direct CH1, NIP #2, NIP #1, LI-201, NIP RG780, CUVA2, CUVB2, TWC; and the following instruments were un-shaded: Diffuse 8-48, PSP, CM22, CUV4, PIR, CG4 |
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| 15 | BMS | | Downwelling CG4 | 03/18/2011 | 00:00:00 | 03/18/2011 | 07:57:00 | The Sci-Tec #2 tracker was jammed on the shading plate. The following instruments were unshaded: CM22, CUV4, CG4; and the following instruments were not pointing at the sun: NIP #1, NIP RG780, LI-201, TWC Photometer. |
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| 16 | BMS | 010548 | Downwelling CG4 | 10/30/2010 | 00:00:00 | 11/01/2010 | 11:27:00 | The Sci-Tec #2 tracker was apparently not working during this time. The following instruments were unshaded: CM22, CUV4, CG4; and the following instruments were not pointing at the sun: NIP #1, NIP RG780, LI-201. |
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| 17 | BMS | | Downwelling CG4 | 12/15/2009 | 09:40:00 | 12/15/2009 | 10:00:00 | The Sci-Tec #2 tracker collided with another empty Sci-Tec tracker. The following instruments were unshaded: CM22, CUV4, CG4; and the following instruments were not pointing at the sun: NIP #1, NIP RG780, LI-201. |
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| 18 | BMS | | Downwelling CG4 | 12/09/2009 | 12:11:00 | 12/09/2009 | 14:22:00 | Due to a power outage at NREL, followed by bad power, the SRRL tracker UPS shutdown. The following BMS instruments were not pointing at the sun: Direct CH1, NIP1, NIP2, NIP-RG780, LI201, TWC500, CUV4; and the following instruments were unshaded: 8-48, CM22, PSP, CUV4, PIR, CG4. |
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| 19 | BMS | 010548 | Downwelling CG4 | 07/30/2009 | 12:45:00 | 07/30/2009 | 23:59:00 | The Sci-Tec #2 tracker was apparently not working during this time. The following instruments were unshaded: CM22, CUV4, CG4; and the following instruments were not pointing at the sun: NIP #1, NIP RG780, LI-201. |
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| 20 | BMS | | Downwelling CG4 | 11/15/2008 | 14:02:00 | 11/15/2008 | 14:32:00 | Due to a planned power outage at SRRL, the following BMS instruments were unshaded: Diffuse 8-48, CM22, PSP, CUV4, DW-PIR, DW-CG4. |
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| 21 | BMS | | Downwelling CG4 | 12/29/2007 | 00:00:00 | 01/03/2008 | 23:59:00 | Sci-Tec Tracker #2 had intermittent alignment problems. The following instruments were UNSHADED: Diffuse CM22, Diffuse UVB-1 and the CG4. The AOCS was not pointing at the SUN. The affected times were: 12/29/07: 13:45-sunset; 12/31/07 @ 13:30 through 1/3/08. |
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| 22 | BMS | | Downwelling CG4 | 11/28/2007 | 12:30:00 | 11/28/2007 | 15:00:00 | Sci-Tec Tracker #2 had intermittent alignment problems. The following instruments were UNSHADED: Diffuse CM22, Diffuse UVB-1 and the CG4. The AOCS was not pointing at the SUN. |
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| 23 | BMS | | Downwelling CG4 | 11/05/2007 | 00:00:00 | 11/11/2007 | 23:59:00 | Sci-Tec Tracker #2 had intermittent alignment problems. The following instruments were UNSHADED: Diffuse CM22, Diffuse UVB-1 and the CG4. The AOCS was not pointing at the SUN. The affected times were: 11/5: sunrise to 8:45 MST; 11/7 through 11/11. |
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| 24 | BMS | 010548 | Downwelling CG4 | 07/26/2006 | 07:00:00 | 07/28/2006 | 15:30:00 | Instrument thermpile signal was bogus at various times throughout these three days during working hours, due to patch panel/deck cabling/data logger connection troubleshooting. |
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| 25 | BMS | 010548 | Downwelling CG4 | 05/25/2006 | 10:50:00 | 05/25/2006 | 11:10:00 | Sci-Tec tracker #2 tracker was down due to power shutdown for installation of new SRRL equipment lift. The following instruments were UNSHADED: Diffuse CM22, Diffuse UVB-1 and the CG4. |
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