ASTROSAT CZTI

Data Quality Report

Orbit 15467

Creation date: 2024-06-27T17:08:55.681529
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_203T01_9000002284_15467cztM0_level2.evt modeM0/AS1A04_203T01_9000002284_15467cztM0_level2_quad_clean.evt
Size (bytes)487,918,08093,006,720
Size465.3 MB 88.7 MB
Events in quadrant A3,268,684589,385
Events in quadrant B3,437,329597,342
Events in quadrant C3,417,200586,884
Events in quadrant D4,181,209558,497

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143973
B0147512
C0145122
D0171802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6957711.020555%
B69571051.509271%
C6957550.790571%
D69572223.191031%

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 8503 6959 0 0 0.00% 0.00%
B 8503 6959 5 5 0.06% 0.07%
C 8503 6960 0 0 0.00% 0.00%
D 8503 6959 143 143 1.68% 2.05%

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 96 34217 195.04 837 819 171.2
A 9 143 10722 57.83 837 819 171.2
A 0 226 7521 39.14 837 819 171.2
B 3 209 73267 443.81 837 818 163.2
B 0 189 50939 307.03 837 818 163.2
B 12 111 19590 114.99 837 818 163.2
C 3 233 245392 1295.54 810 814 188.8
C 14 234 8664 41.58 810 814 188.8
C 13 61 5767 26.24 810 814 188.8
D 1 52 651195 3267.71 806 780 199.0
D 2 33 261618 1310.46 806 780 199.0
D 5 222 89576 446.11 806 780 199.0

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