ASTROSAT CZTI

Data Quality Report

Orbit 29669

Creation date: 2024-06-27T20:06:38.230066
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_097T02_9000004272_29669cztM0_level2.evt modeM0/AS1A10_097T02_9000004272_29669cztM0_level2_quad_clean.evt
Size (bytes)574,035,840101,448,000
Size547.4 MB 96.7 MB
Events in quadrant A3,127,417679,791
Events in quadrant B3,959,635682,361
Events in quadrant C3,353,747652,503
Events in quadrant D6,512,175612,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134001
B0158261
C0140241
D0239581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6379681.065998%
B6380841.316614%
C63801312.053292%
D63804326.771160%

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 7369 6379 0 0 0.00% 0.00%
B 7370 6380 3 3 0.04% 0.05%
C 7370 6380 27 27 0.37% 0.42%
D 7370 6380 410 410 5.56% 6.43%

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 13 254 10891 61.81 809 794 163.3
A 0 13 9255 51.8 809 794 163.3
A 3 137 7991 44.06 809 794 163.3
B 0 189 739826 4808.5 794 772 153.7
B 0 229 73570 473.65 794 772 153.7
B 12 111 19071 119.06 794 772 153.7
C 10 22 196082 1089.39 761 766 179.3
C 14 238 124638 690.91 761 766 179.3
C 3 233 39544 216.29 761 766 179.3
D 7 80 2768887 15225.74 762 741 181.8
D 8 195 492909 2707.09 762 741 181.8
D 7 238 191518 1049.34 762 741 181.8

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