ASTROSAT CZTI

Data Quality Report

Orbit 14214

Creation date: 2024-06-27T16:52:00.412864
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/AS1G08_084T01_9000002100_14214cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14214cztM0_level2_quad_clean.evt
Size (bytes)568,186,56091,837,440
Size541.9 MB 87.6 MB
Events in quadrant A3,619,823594,232
Events in quadrant B3,683,222598,612
Events in quadrant C3,594,936579,553
Events in quadrant D5,855,590541,289

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147423
B0149562
C0146262
D0221052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67021271.894957%
B67021522.267980%
C6702941.402566%
D67034606.862599%

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 7993 6704 5 5 0.06% 0.07%
B 7993 6703 10 10 0.13% 0.15%
C 7993 6704 1 1 0.01% 0.01%
D 7994 6705 281 281 3.52% 4.19%

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 12 189 78692 446.98 883 866 174.1
A 8 15 58633 331.77 883 866 174.1
A 9 143 53226 300.72 883 866 174.1
B 0 229 68807 423.7 874 855 160.4
B 4 97 49715 304.66 874 855 160.4
B 0 219 41869 255.73 874 855 160.4
C 3 233 280034 1466.71 849 855 190.3
C 13 61 6082 27.46 849 855 190.3
C 14 234 4252 17.85 849 855 190.3
D 5 222 1957399 9991.68 838 817 195.8
D 8 195 508471 2592.44 838 817 195.8
D 10 199 137670 698.87 838 817 195.8

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