ASTROSAT CZTI

Data Quality Report

Orbit 06565

Creation date: 2024-06-27T15:08:52.439479
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/AS1G05_246T04_9000000882_06565cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06565cztM0_level2_quad_clean.evt
Size (bytes)1,405,270,080205,652,160
Size1.3 GB 196.1 MB
Events in quadrant A8,495,0231,252,372
Events in quadrant B9,137,7911,265,653
Events in quadrant C8,289,5671,253,576
Events in quadrant D15,379,6681,173,695

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379545
B0395804
C0379624
D0586644

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03800
B03800
C03800
D03800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186082161.160791%
B186082921.569218%
C186081730.929708%
D186088704.675408%

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 20518 18611 0 0 0.00% 0.00%
B 20518 18611 35 35 0.17% 0.19%
C 20518 18611 0 0 0.00% 0.00%
D 20518 18611 422 422 2.06% 2.27%

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 8 15 168681 379.51 2152 2099 438.9
A 15 222 33839 72.31 2152 2099 438.9
A 0 226 20412 41.72 2152 2099 438.9
B 4 81 127811 304.45 2163 2115 412.9
B 15 204 109910 261.09 2163 2115 412.9
B 0 219 108338 257.28 2163 2115 412.9
C 9 237 69154 138.46 2092 2101 484.3
C 13 61 16622 29.98 2092 2101 484.3
C 8 128 16512 29.76 2092 2101 484.3
D 12 221 5391676 10617.44 2064 1998 507.6
D 14 34 939332 1846.51 2064 1998 507.6
D 2 33 514256 1009.13 2064 1998 507.6

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