ASTROSAT CZTI

Data Quality Report

Orbit 14446

Creation date: 2024-06-27T16:55:17.309238
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_025T01_9000002130_14446cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14446cztM0_level2_quad_clean.evt
Size (bytes)501,474,240107,550,720
Size478.2 MB 102.6 MB
Events in quadrant A3,150,014722,446
Events in quadrant B4,094,498715,258
Events in quadrant C3,305,130704,188
Events in quadrant D4,216,679682,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132773
B0160972
C0138112
D0166892

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200350.564516%
B62004627.451613%
C6200290.467742%
D62003545.709677%

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 7541 6201 6 6 0.08% 0.10%
B 7541 6202 303 303 4.02% 4.89%
C 7541 6201 0 0 0.00% 0.00%
D 7541 6202 160 160 2.12% 2.58%

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 50468 313.8 786 771 158.4
A 4 2 43314 268.63 786 771 158.4
A 8 15 33192 204.71 786 771 158.4
B 10 16 987306 7031.3 750 734 140.3
B 15 222 101448 717.79 750 734 140.3
B 3 209 25897 179.34 750 734 140.3
C 3 233 343162 1955.69 759 762 175.1
C 13 61 5558 27.39 759 762 175.1
C 0 207 2874 12.06 759 762 175.1
D 13 122 776473 4365.83 738 721 177.7
D 2 120 397753 2234.44 738 721 177.7
D 2 152 72717 405.18 738 721 177.7

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