ASTROSAT CZTI

Data Quality Report

Orbit 03464

Creation date: 2024-06-27T14:29:24.519208
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_209T01_9000000458_03464cztM0_level2.evt modeM0/AS1G05_209T01_9000000458_03464cztM0_level2_quad_clean.evt
Size (bytes)507,461,760117,342,720
Size484.0 MB 111.9 MB
Events in quadrant A4,457,910735,494
Events in quadrant B3,775,018760,253
Events in quadrant C3,354,855776,631
Events in quadrant D3,260,330748,718

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190701
B0166480
C0157590
D0159220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76624185.455495%
B7662480.626468%
C766270.091360%
D7662170.221874%

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 7662 7662 212 212 2.77% 2.77%
B 7662 7662 3 3 0.04% 0.04%
C 7662 7662 0 0 0.00% 0.00%
D 7662 7662 17 17 0.22% 0.22%

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 14 249 523548 3128.48 814 794 167.1
A 8 15 288847 1723.88 814 794 167.1
A 0 50 249685 1489.51 814 794 167.1
B 15 204 298607 1810.85 852 831 164.4
B 14 167 79619 479.13 852 831 164.4
B 0 229 33646 199.56 852 831 164.4
C 9 144 46894 242.9 820 822 189.7
C 1 192 30419 156.04 820 822 189.7
C 14 223 28696 146.96 820 822 189.7
D 5 233 55622 277.85 812 787 197.4
D 7 39 29056 143.24 812 787 197.4
D 10 34 24249 118.88 812 787 197.4

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