ASTROSAT CZTI

Data Quality Report

Orbit 17292

Creation date: 2024-06-27T17:34:37.967846
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_010T02_9000002556_17292cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17292cztM0_level2_quad_clean.evt
Size (bytes)496,537,92084,205,440
Size473.5 MB 80.3 MB
Events in quadrant A3,311,461529,570
Events in quadrant B3,341,239533,293
Events in quadrant C3,338,755507,980
Events in quadrant D4,579,923500,970

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143372
B0143772
C0144532
D0184432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68721131.644354%
B68731171.702313%
C68721412.051804%
D68724256.184517%

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 8757 6873 2 2 0.02% 0.03%
B 8758 6873 0 0 0.00% 0.00%
C 8757 6872 0 0 0.00% 0.00%
D 8757 6873 205 205 2.34% 2.98%

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 0 226 7664 39.47 859 840 172.9
A 0 23 7122 36.33 859 840 172.9
A 3 137 6483 32.64 859 840 172.9
B 12 111 20317 119.03 853 831 163.7
B 11 111 17655 102.77 853 831 163.7
B 14 111 15440 89.24 853 831 163.7
C 14 238 125675 650.83 818 826 191.8
C 3 233 23585 118.64 818 826 191.8
C 13 61 5780 25.82 818 826 191.8
D 11 176 715159 3633.8 816 794 196.6
D 13 232 429141 2178.9 816 794 196.6
D 13 170 126800 640.96 816 794 196.6

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