ASTROSAT CZTI

Data Quality Report

Orbit 22453

Creation date: 2024-06-27T18:41:08.737959
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_056T01_9000003330_22453cztM0_level2.evt modeM0/AS1A07_056T01_9000003330_22453cztM0_level2_quad_clean.evt
Size (bytes)471,890,880132,503,040
Size450.0 MB 126.4 MB
Events in quadrant A3,250,464892,975
Events in quadrant B4,083,159898,966
Events in quadrant C3,284,314876,102
Events in quadrant D3,198,545858,643

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143652
B0170032
C0143772
D0146692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6985120.171797%
B69852493.564782%
C6985791.130995%
D6985260.372226%

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 7730 6986 0 0 0.00% 0.00%
B 7730 6986 136 136 1.76% 1.95%
C 7730 6986 0 0 0.00% 0.00%
D 7730 6986 15 15 0.19% 0.21%

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 6 240 101397 614.81 815 797 163.6
A 13 254 10405 58.72 815 797 163.6
A 3 137 7089 38.45 815 797 163.6
B 10 245 877683 5719.91 810 788 153.3
B 12 111 18653 116.53 810 788 153.3
B 11 111 16650 103.47 810 788 153.3
C 14 238 125734 682.46 789 794 183.1
C 3 9 52289 281.28 789 794 183.1
C 10 22 19484 102.09 789 794 183.1
D 1 52 63617 324.99 796 772 193.4
D 5 32 61674 314.94 796 772 193.4
D 2 136 40732 206.64 796 772 193.4

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