ASTROSAT CZTI

Data Quality Report

Orbit 15594

Creation date: 2024-06-27T17:10:53.286059
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/AS1A04_037T02_9000002310_15594cztM0_level2.evt modeM0/AS1A04_037T02_9000002310_15594cztM0_level2_quad_clean.evt
Size (bytes)522,567,36076,682,880
Size498.4 MB 73.1 MB
Events in quadrant A3,929,369457,732
Events in quadrant B3,678,179462,543
Events in quadrant C3,740,577444,138
Events in quadrant D3,970,401437,576

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165852
B0156761
C0157221
D0168151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74701211.619813%
B74701321.767068%
C74701471.967871%
D74701401.874163%

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 7716 7471 2 2 0.03% 0.03%
B 7716 7471 1 1 0.01% 0.01%
C 7716 7471 0 0 0.00% 0.00%
D 7716 7472 66 66 0.86% 0.88%

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 0 253 372360 1991.29 912 893 186.5
A 13 248 27365 141.91 912 893 186.5
A 9 143 16757 85.04 912 893 186.5
B 0 189 53581 301.77 908 885 174.6
B 12 111 19954 109.2 908 885 174.6
B 11 111 17468 94.96 908 885 174.6
C 3 233 205558 999.38 870 873 204.8
C 14 238 133863 649.33 870 873 204.8
C 10 22 6982 29.83 870 873 204.8
D 12 110 288611 1324.85 887 860 217.2
D 15 0 113170 517.09 887 860 217.2
D 14 128 49546 224.16 887 860 217.2

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