ASTROSAT CZTI

Data Quality Report

Orbit 05465

Creation date: 2024-06-27T14:55:31.683807
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_087T03_9000000696_05465cztM0_level2.evt modeM0/AS1G06_087T03_9000000696_05465cztM0_level2_quad_clean.evt
Size (bytes)760,930,560104,091,840
Size725.7 MB 99.3 MB
Events in quadrant A4,599,588616,041
Events in quadrant B5,294,020619,545
Events in quadrant C4,737,144621,992
Events in quadrant D7,710,185574,434

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02124
B02122
C02122
D02122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021574285
B022977300
C021840298
D030553372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103951071.029341%
B103921741.674365%
C103891191.145442%
D103867727.433083%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 10922 10463 0 0 0.00% 0.00%
B 10922 10458 27 27 0.25% 0.26%
C 10922 10450 6 6 0.05% 0.06%
D 10922 10461 625 625 5.72% 5.97%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 247 20556 79.85 1183 1157 242.9
A 13 6 17281 66.37 1183 1157 242.9
A 0 226 13055 48.98 1183 1157 242.9
B 15 204 376581 1612.57 1197 1167 232.8
B 10 16 80782 341.98 1197 1167 232.8
B 4 48 69453 293.32 1197 1167 232.8
C 1 241 210874 777.2 1154 1162 269.8
C 0 10 15951 54.81 1154 1162 269.8
C 13 61 9286 30.11 1154 1162 269.8
D 2 33 2003100 7228.73 1126 1088 277.0
D 4 95 441156 1588.97 1126 1088 277.0
D 11 192 286897 1031.98 1126 1088 277.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter