ASTROSAT CZTI

Data Quality Report

Orbit 23681

Creation date: 2024-06-27T18:55:31.612150
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/AS1A07_112T01_9000003478_23681cztM0_level2.evt modeM0/AS1A07_112T01_9000003478_23681cztM0_level2_quad_clean.evt
Size (bytes)7,050,2402,664,000
Size6.7 MB 2.5 MB
Events in quadrant A50,62915,894
Events in quadrant B50,08915,802
Events in quadrant C51,54315,853
Events in quadrant D49,38815,642

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B042
C042
D042

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031474
B031989
C032183
D031470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12000.000000%
B11500.000000%
C11900.000000%
D12000.000000%

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 135 130 0 0 0.00% 0.00%
B 125 124 0 0 0.00% 0.00%
C 143 129 0 0 0.00% 0.00%
D 137 135 0 0 0.00% 0.00%

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 13 254 222 45.53 13 12 4.6
A 3 137 114 22.11 13 12 4.6
A 12 194 96 18.21 13 12 4.6
B 12 111 276 63.44 12 12 4.2
B 14 111 249 56.95 12 12 4.2
B 11 111 236 53.83 12 12 4.2
C 14 238 2229 467.71 12 12 4.7
C 13 61 95 17.51 12 12 4.7
C 14 61 36 5.06 12 12 4.7
D 1 52 1770 372.28 12 12 4.7
D 2 234 574 119.01 12 12 4.7
D 8 195 142 27.53 12 12 4.7

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