ASTROSAT CZTI

Data Quality Report

Orbit 17430

Creation date: 2024-06-27T17:36:26.324539
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/AS1A05_198T01_9000002578_17430cztM0_level2.evt modeM0/AS1A05_198T01_9000002578_17430cztM0_level2_quad_clean.evt
Size (bytes)498,556,80094,092,480
Size475.5 MB 89.7 MB
Events in quadrant A3,590,641600,311
Events in quadrant B3,801,171610,299
Events in quadrant C3,421,209585,269
Events in quadrant D3,816,249571,690

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152192
B0156152
C0144322
D0160802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69131341.938377%
B69131502.169825%
C6913791.142774%
D69131912.762910%

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 7618 6914 84 84 1.10% 1.21%
B 7618 6914 38 38 0.50% 0.55%
C 7618 6914 1 1 0.01% 0.01%
D 7618 6914 174 174 2.28% 2.52%

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 10 253 312098 1816.77 844 827 171.3
A 9 143 13429 73.55 844 827 171.3
A 6 16 9772 52.21 844 827 171.3
B 15 35 201778 1235.35 845 822 162.7
B 0 219 94540 576.12 845 822 162.7
B 7 220 90659 552.26 845 822 162.7
C 14 238 124406 653.24 802 807 189.2
C 5 218 112718 591.47 802 807 189.2
C 3 233 27334 140.2 802 807 189.2
D 13 232 484944 2447.42 809 786 197.8
D 13 189 63104 315.02 809 786 197.8
D 12 110 53429 266.11 809 786 197.8

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