ASTROSAT CZTI

Data Quality Report

Orbit 27772

Creation date: 2024-06-27T19:44:36.801259
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_024T01_9000004010_27772cztM0_level2.evt modeM0/AS1A10_024T01_9000004010_27772cztM0_level2_quad_clean.evt
Size (bytes)234,682,56056,574,720
Size223.8 MB 54.0 MB
Events in quadrant A1,357,792384,989
Events in quadrant B2,165,345376,031
Events in quadrant C1,556,770370,751
Events in quadrant D1,816,006361,599

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062020
B084190
C064780
D076010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A308700.000000%
B30761334.323797%
C3091100.323520%
D3078963.118908%

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 3113 3110 0 0 0.00% 0.00%
B 3112 3106 109 109 3.50% 3.51%
C 3113 3112 0 0 0.00% 0.00%
D 3114 3109 118 118 3.79% 3.80%

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 5538 71.19 351 344 73.0
A 3 137 3186 38.96 351 344 73.0
A 0 226 2990 36.27 351 344 73.0
B 3 64 717443 10700.17 340 332 67.0
B 0 190 42079 622.92 340 332 67.0
B 0 230 20945 307.57 340 332 67.0
C 3 233 226305 2895.95 327 329 78.0
C 14 238 52208 664.84 327 329 78.0
C 13 61 2307 25.35 327 329 78.0
D 1 52 324665 3973.66 331 320 81.6
D 2 250 161442 1973.96 331 320 81.6
D 7 69 21442 258.77 331 320 81.6

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