ASTROSAT CZTI

Data Quality Report

Orbit 15347

Creation date: 2024-06-27T17:07:15.562635
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_126T01_9000002262_15347cztM0_level2.evt modeM0/AS1A04_126T01_9000002262_15347cztM0_level2_quad_clean.evt
Size (bytes)61,729,92016,162,560
Size58.9 MB 15.4 MB
Events in quadrant A425,942102,338
Events in quadrant B451,132104,760
Events in quadrant C507,960102,363
Events in quadrant D410,02499,406

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020891
B020910
C021360
D020960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103900.000000%
B103910.096246%
C103900.000000%
D103910.096246%

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 1040 1040 0 0 0.00% 0.00%
B 1040 1040 0 0 0.00% 0.00%
C 1040 1040 0 0 0.00% 0.00%
D 1040 1040 0 0 0.00% 0.00%

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 9 143 5274 208.13 109 106 24.8
A 0 226 879 31.13 109 106 24.8
A 3 137 835 29.36 109 106 24.8
B 0 205 12208 511.57 112 109 23.7
B 12 111 2630 106.59 112 109 23.7
B 11 111 2221 89.3 112 109 23.7
C 3 233 55589 2058.36 108 108 27.0
C 7 247 29277 1082.18 108 108 27.0
C 13 61 806 25.9 108 108 27.0
D 12 110 6934 246.73 105 102 27.7
D 2 234 3812 133.98 105 102 27.7
D 13 238 3256 113.9 105 102 27.7

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