ASTROSAT CZTI

Data Quality Report

Orbit 30362

Creation date: 2024-06-27T20:14:17.196596
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/AS1A10_053T17_9000004366_30362cztM0_level2.evt modeM0/AS1A10_053T17_9000004366_30362cztM0_level2_quad_clean.evt
Size (bytes)728,153,280123,010,560
Size694.4 MB 117.3 MB
Events in quadrant A4,609,648776,018
Events in quadrant B7,132,086780,834
Events in quadrant C4,965,988759,444
Events in quadrant D4,709,333758,033

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194242
B0282184
C0202572
D0198522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A93871151.225099%
B93861741.853825%
C93862432.588962%
D93861041.108033%

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 10582 9387 0 0 0.00% 0.00%
B 10581 9386 1 1 0.01% 0.01%
C 10581 9386 73 73 0.69% 0.78%
D 10581 9386 10 10 0.09% 0.11%

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 14 239 89897 378.83 1156 1130 234.3
A 12 96 25488 103.95 1156 1130 234.3
A 8 192 24587 100.11 1156 1130 234.3
B 6 159 2616130 11793.83 1139 1106 221.7
B 12 111 28444 123.3 1139 1106 221.7
B 0 190 27221 117.78 1139 1106 221.7
C 3 233 455654 1751.13 1105 1111 259.6
C 14 238 175626 672.32 1105 1111 259.6
C 2 114 22005 80.49 1105 1111 259.6
D 8 195 197559 720.73 1126 1103 272.6
D 2 250 138649 504.61 1126 1103 272.6
D 13 104 73161 264.36 1126 1103 272.6

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