D Q R Report

DQRID : D040615.5

Start Date	Start Time	End Date	End Time	Data Quality Metric
02/19/2004	2212	03/10/2004	2247	Suspect

Subject:	SGP/SIRS/E12 - Incorrect Times
DataStreams:	sgpsirsE12.00, sgp15swfanalsirs1longE12.c1, sgpsirsE12.b1, sgpsirs20sE12.a0, sgp1swfanalsirs1longE12.c1
Description:	The ntpd server (time adjustment) stopped working on Feb. 19th at 22:12:16 GMT, and the clock was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on March 10th.
Suggestions:	Observation times might be improved somewhat by estimating an interpolated time drift using sunrise/sunset event timings in the shortwave channels.
Measurements:	sgp15swfanalsirs1longE12.c1: difswfluxdn_measured sun_earth_distance nsamples_sswfluxdn_measured dirfluxdn_clearskyfit guvbdn_clearskyfit cloudfraction difswfluxdn_cloudeffect difcloudeffect_normalized difratiodn_measured_stdev difratiodn_clearskyfit nsamples_clearsky_detection nsamples_cloudfraction guvbdn_measured site sswfluxdn_clearskyfit gswfluxdn_cloudeffect sswfluxdn_measured difswfluxdn_clearskyfit base_time nsamples_gswfluxdn_clearskyfit gswfluxdn_clearskyfit albedosw_measured time_offset sswfluxdn_cloudeffect base_time_LST albedosw_clearskyfit time_offset_LST dirfluxdn_measured gswfluxdn_measured difratiodn_measured solar_cos_z more sgp1swfanalsirs1longE12.c1: coef_clearsky_gsw_a sun_earth_distance_dailyaverage gswfluxdn_measured base_time_LST coef_clearsky_albedo_b coef_clearsky_albedo_a gswfluxdn_clearskyfit albedosw_measured flag_clearsky_detection coef_clearsky_guvb_a coef_clearsky_guvb_b sswfluxdn_clearskyfit guvbdn_clearskyfit time_offset_LST sun_earth_distance coef_clearsky_gsw_b difswfluxdn_cloudeffect sswfluxdn_measured coef_clearsky_difratio_a coef_clearsky_difratio_b difratiodn_measured difswfluxdn_clearskyfit solar_cos_z coef_clearsky_ssw_a coef_clearsky_ssw_b guvbdn_measured coef_clearsky_dsw_a coef_clearsky_dsw_b coef_clearsky_dsw_c difratiodn_clearskyfit time_offset dirfluxdn_measured coef_date base_time sswfluxdn_cloudeffect difswfluxdn_measured albedosw_clearskyfit dirfluxdn_clearskyfit site gswfluxdn_cloudeffect more sgpsirs20sE12.a0: inst_up_long_dome_resist inst_up_long_case_resist inst_up_short_hemisp inst_global inst_down_long_shaded_dome_resist inst_down_long_hemisp_shaded_tp inst_down_long_shaded_case_resist inst_diffuse base_time time_offset inst_direct_normal inst_up_long_hemisp_tp more sgpsirsE12.00: Raw data stream - documentation not supported more sgpsirsE12.b1: time_offset up_short_hemisp_std short_direct_normal vBatt up_short_hemisp down_short_hemisp_min down_short_hemisp_std up_long_hemisp_std down_short_diffuse_hemisp down_short_diffuse_hemisp_max base_time up_long_netir down_long_hemisp_shaded up_long_hemisp_min up_long_hemisp down_short_hemisp up_long_hemisp_max short_direct_normal_min down_short_diffuse_hemisp_std down_long_hemisp_shaded_max inst_down_long_shaded_dome_temp down_long_hemisp_shaded_min down_short_diffuse_hemisp_min short_direct_normal_max down_long_netir down_long_hemisp_shaded_std up_short_hemisp_max inst_up_long_dome_temp down_short_hemisp_max inst_up_long_case_temp up_short_hemisp_min inst_down_long_shaded_case_temp short_direct_normal_std more

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