ASTROSAT CZTI

Data Quality Report

Orbit 05375

Creation date: 2024-06-27T14:54:31.623205
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/AS1G05_021T02_9000000680_05375cztM0_level2.evt modeM0/AS1G05_021T02_9000000680_05375cztM0_level2_quad_clean.evt
Size (bytes)589,412,16072,178,560
Size562.1 MB 68.8 MB
Events in quadrant A4,070,375406,058
Events in quadrant B4,073,990415,906
Events in quadrant C4,085,804417,169
Events in quadrant D5,059,104372,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01789125
B01761812
C01765325
D02104961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82514835.853836%
B82564855.874516%
C82513964.799418%
D82478209.943010%

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 8262 8261 28 28 0.34% 0.34%
B 8262 8262 0 0 0.00% 0.00%
C 8262 8261 8 8 0.10% 0.10%
D 8262 8257 431 431 5.22% 5.22%

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 50 141682 669.62 1008 982 210.1
A 15 174 48398 225.66 1008 982 210.1
A 12 194 10114 43.46 1008 982 210.1
B 4 80 25831 123.16 1026 996 201.6
B 15 204 19581 92.17 1026 996 201.6
B 12 111 18767 88.13 1026 996 201.6
C 1 16 168221 719.66 995 996 232.4
C 9 247 29000 120.52 995 996 232.4
C 13 61 8208 31.04 995 996 232.4
D 7 237 891126 3720.17 957 923 239.3
D 2 33 205486 854.87 957 923 239.3
D 2 136 124760 517.52 957 923 239.3

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