ASTROSAT CZTI

Data Quality Report

Orbit 28027

Creation date: 2024-06-27T19:47:13.977016
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_045T02_9000004048_28027cztM0_level2.evt modeM0/AS1A10_045T02_9000004048_28027cztM0_level2_quad_clean.evt
Size (bytes)169,770,24041,924,160
Size161.9 MB 40.0 MB
Events in quadrant A1,007,743289,845
Events in quadrant B1,024,561289,772
Events in quadrant C1,116,434272,322
Events in quadrant D1,845,293262,435

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043110
B044040
C046530
D070180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A213900.000000%
B214040.186916%
C2140100.467290%
D2140884.112150%

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 2139 2139 0 0 0.00% 0.00%
B 2140 2140 0 0 0.00% 0.00%
C 2140 2140 0 0 0.00% 0.00%
D 2140 2140 99 99 4.63% 4.63%

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 13 12487 229.35 257 252 53.3
A 13 254 3672 64.11 257 252 53.3
A 8 34 2653 45.01 257 252 53.3
B 0 190 16075 317.61 253 247 49.8
B 4 200 7607 147.69 253 247 49.8
B 12 111 5833 112.09 253 247 49.8
C 3 233 149764 2639.67 237 238 56.6
C 14 238 38732 679.56 237 238 56.6
C 10 22 2060 32.16 237 238 56.6
D 8 195 400130 6961.78 237 230 57.4
D 1 52 372108 6473.95 237 230 57.4
D 7 80 144846 2517.59 237 230 57.4

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