ASTROSAT CZTI

Data Quality Report

Orbit 46614

Creation date: 2024-06-27T23:25:26.913789
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/AS1A13_080T01_9000006240_46614cztM0_level2.fits modeM0/AS1A13_080T01_9000006240_46614cztM0_level2_quad_clean.evt
Size (bytes)2,042,259,840372,467,520
Size1.9 GB 355.2 MB
Events in quadrant A24,939,6462,508,251
Events in quadrant B16,330,1422,415,483
Events in quadrant C13,618,9192,503,166
Events in quadrant D19,010,2172,332,640

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04500
B04500
C04500
D04500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0887224
B06443010
C0577714
D0717784

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22046229910.428196%
B2204421919.939212%
C2204720039.085136%
D22047220810.014968%

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 23456 22051 1829 1829 7.80% 8.29%
B 23457 22050 1392 1392 5.93% 6.31%
C 23457 22051 1265 1265 5.39% 5.74%
D 23457 22052 1920 1920 8.19% 8.71%

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 10 83 10022847 15280.98 2937 2890 655.7
A 0 247 2917877 4445.51 2937 2890 655.7
A 0 226 189199 284.13 2937 2890 655.7
B 12 3 3117903 5662.23 2715 2651 550.2
B 5 32 951362 1724.36 2715 2651 550.2
B 0 189 725558 1313.94 2715 2651 550.2
C 14 254 2133053 2800.02 2859 2871 760.8
C 3 233 112313 143.86 2859 2871 760.8
C 12 2 110130 140.99 2859 2871 760.8
D 1 52 2693249 3092.9 3019 2935 869.8
D 12 128 1484355 1703.1 3019 2935 869.8
D 13 249 1394110 1599.35 3019 2935 869.8

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