ASTROSAT CZTI

Data Quality Report

Orbit 12533

Creation date: 2024-06-27T16:28:45.871360
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_230T01_9000001854_12533cztM0_level2.evt modeM0/AS1A04_230T01_9000001854_12533cztM0_level2_quad_clean.evt
Size (bytes)470,747,52075,870,720
Size448.9 MB 72.4 MB
Events in quadrant A3,393,858468,951
Events in quadrant B3,537,274477,185
Events in quadrant C3,108,465476,883
Events in quadrant D3,802,900448,173

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141273
B0145012
C0132832
D0154212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6110580.949264%
B61101131.849427%
C6110350.572831%
D61101542.520458%

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 7426 6112 2 2 0.03% 0.03%
B 7426 6112 23 23 0.31% 0.38%
C 7426 6112 0 0 0.00% 0.00%
D 7426 6112 74 74 1.00% 1.21%

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 1 162 103062 634.24 804 791 161.2
A 1 178 53981 329.86 804 791 161.2
A 1 161 45856 279.47 804 791 161.2
B 4 239 233974 1528.53 809 790 152.6
B 0 230 104020 676.67 809 790 152.6
B 12 111 16784 104.84 809 790 152.6
C 13 61 5669 26.59 796 803 183.0
C 9 221 3160 12.88 796 803 183.0
C 14 67 2732 10.54 796 803 183.0
D 1 52 526257 2828.69 779 757 185.8
D 8 195 172650 925.27 779 757 185.8
D 13 112 80715 430.4 779 757 185.8

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