ASTROSAT CZTI

Data Quality Report

Orbit 29972

Creation date: 2024-06-27T20:09:21.918134
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/AS1A10_053T06_9000004300_29972cztM0_level2.evt modeM0/AS1A10_053T06_9000004300_29972cztM0_level2_quad_clean.evt
Size (bytes)107,124,48017,991,360
Size102.2 MB 17.2 MB
Events in quadrant A505,142122,528
Events in quadrant B930,212120,439
Events in quadrant C1,232,897108,948
Events in quadrant D506,373116,444

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020591
B034031
C043511
D020831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A981191.936799%
B981393.975535%
C98219619.959267%
D982141.425662%

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 1686 982 2 2 0.12% 0.20%
B 1686 982 1 1 0.06% 0.10%
C 1687 983 67 67 3.97% 6.82%
D 1687 983 1 1 0.06% 0.10%

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 8 192 13773 494.51 124 122 27.6
A 15 174 6771 240.86 124 122 27.6
A 13 254 1936 65.71 124 122 27.6
B 6 159 300131 11329.79 124 121 26.5
B 6 36 131592 4964.97 124 121 26.5
B 0 183 6260 231.84 124 121 26.5
C 3 233 766325 26302.83 114 114 29.1
C 14 238 18223 621.65 114 114 29.1
C 2 114 2217 72.19 114 114 29.1
D 8 195 23822 772.54 120 116 30.7
D 2 153 6978 223.61 120 116 30.7
D 1 52 4594 145.92 120 116 30.7

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