ASTROSAT CZTI

Data Quality Report

Orbit 30523

Creation date: 2024-06-27T20:16:24.124733
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/AS1C05_019T04_9000004388_30523cztM0_level2.evt modeM0/AS1C05_019T04_9000004388_30523cztM0_level2_quad_clean.evt
Size (bytes)588,677,760122,690,880
Size561.4 MB 117.0 MB
Events in quadrant A3,475,170820,637
Events in quadrant B5,699,261810,866
Events in quadrant C3,645,710791,677
Events in quadrant D4,507,891778,723

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150582
B0224402
C0154832
D0185752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7381771.043219%
B73821642.221620%
C73821542.086156%
D73821682.275806%

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 8926 7383 1 1 0.01% 0.01%
B 8927 7384 9 9 0.10% 0.12%
C 8927 7384 28 28 0.31% 0.38%
D 8927 7384 102 102 1.14% 1.38%

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 8 192 24369 131.71 891 873 178.4
A 13 254 14547 76.65 891 873 178.4
A 3 137 9152 46.41 891 873 178.4
B 6 159 2038904 12123.39 880 856 168.1
B 6 36 104106 614.19 880 856 168.1
B 0 230 24515 140.74 880 856 168.1
C 14 238 137503 676.76 860 863 201.9
C 10 22 112326 552.06 860 863 201.9
C 3 233 17563 82.71 860 863 201.9
D 8 195 585817 2755.27 864 842 212.3
D 13 249 415259 1951.93 864 842 212.3
D 7 238 115511 540.1 864 842 212.3

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