ASTROSAT CZTI

Data Quality Report

Orbit 12413

Creation date: 2024-06-27T16:26:57.615829
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_201T01_9000001844_12413cztM0_level2.evt modeM0/AS1A04_201T01_9000001844_12413cztM0_level2_quad_clean.evt
Size (bytes)597,844,800109,333,440
Size570.1 MB 104.3 MB
Events in quadrant A4,490,185682,187
Events in quadrant B4,908,492690,809
Events in quadrant C3,879,483689,240
Events in quadrant D4,253,360660,916

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188093
B0202482
C0172592
D0184292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8458680.803973%
B84582603.074013%
C8458330.390163%
D8458840.993143%

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 10169 8460 3 3 0.03% 0.04%
B 10169 8459 132 132 1.30% 1.56%
C 10169 8460 0 0 0.00% 0.00%
D 10169 8460 46 46 0.45% 0.54%

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 13 251 155426 742.33 1015 994 208.0
A 12 189 105357 501.65 1015 994 208.0
A 1 162 95987 456.61 1015 994 208.0
B 4 239 533128 2750.89 1007 983 193.4
B 3 64 224975 1157.91 1007 983 193.4
B 0 197 70229 357.96 1007 983 193.4
C 14 234 20170 83.74 987 993 229.0
C 1 16 8669 33.52 987 993 229.0
C 13 61 6959 26.05 987 993 229.0
D 1 52 254956 1070.72 983 953 237.2
D 8 195 103830 433.67 983 953 237.2
D 13 104 59619 247.3 983 953 237.2

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