ASTROSAT CZTI

Data Quality Report

Orbit 14965

Creation date: 2024-06-27T17:01:53.665002
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/AS1T02_056T01_9000002210_14965cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14965cztM0_level2_quad_clean.evt
Size (bytes)624,902,40064,249,920
Size596.0 MB 61.3 MB
Events in quadrant A3,496,788397,422
Events in quadrant B3,558,820397,713
Events in quadrant C3,239,534386,603
Events in quadrant D8,213,607333,213

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142612
B0143321
C0132271
D0286971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6157360.584700%
B61571141.851551%
C6157150.243625%
D6157136322.137405%

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 7473 6159 0 0 0.00% 0.00%
B 7473 6159 46 46 0.62% 0.75%
C 7473 6159 0 0 0.00% 0.00%
D 7473 6159 1270 1270 16.99% 20.62%

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 1 162 122400 742.86 818 803 163.7
A 12 189 76342 461.48 818 803 163.7
A 1 178 56642 341.13 818 803 163.7
B 3 64 274171 1811.17 810 791 150.9
B 10 16 42737 277.9 810 791 150.9
B 0 230 24132 154.64 810 791 150.9
C 3 233 138257 771.66 776 780 178.2
C 7 247 77423 430.2 776 780 178.2
C 13 61 5568 26.88 776 780 178.2
D 7 254 5073109 29071.36 720 698 174.5
D 7 223 203731 1163.64 720 698 174.5
D 10 70 129009 735.39 720 698 174.5

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