ASTROSAT CZTI

Data Quality Report

Orbit 24315

Creation date: 2024-06-27T19:04:39.996848
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/AS1A07_145T01_9000003594_24315cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24315cztM0_level2_quad_clean.evt
Size (bytes)546,468,480100,529,280
Size521.2 MB 95.9 MB
Events in quadrant A3,266,618647,613
Events in quadrant B3,345,077672,599
Events in quadrant C5,418,070641,985
Events in quadrant D4,080,547629,883

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140332
B0142292
C0208242
D0165682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6485570.878951%
B6485711.094834%
C64854156.399383%
D64861892.913969%

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 8735 6485 0 0 0.00% 0.00%
B 8735 6485 0 0 0.00% 0.00%
C 8735 6485 142 142 1.63% 2.19%
D 8736 6486 95 95 1.09% 1.46%

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 3 1 24709 142.66 840 823 167.4
A 13 254 9527 51.98 840 823 167.4
A 3 137 7496 39.85 840 823 167.4
B 12 111 19025 112.9 849 830 161.2
B 11 111 16909 99.77 849 830 161.2
B 14 111 15234 89.37 849 830 161.2
C 7 247 1296254 6855.96 816 824 188.9
C 2 16 798754 4222.98 816 824 188.9
C 14 238 128933 678.01 816 824 188.9
D 1 52 474087 2356.61 826 801 200.8
D 12 218 330743 1642.86 826 801 200.8
D 12 233 57316 281.4 826 801 200.8

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