ASTROSAT CZTI

Data Quality Report

Orbit 22625

Creation date: 2024-06-27T18:43:44.842868
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_112T01_9000003360_22625cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22625cztM0_level2_quad_clean.evt
Size (bytes)535,032,00065,977,920
Size510.2 MB 62.9 MB
Events in quadrant A3,156,431398,985
Events in quadrant B3,462,548402,806
Events in quadrant C3,235,639392,618
Events in quadrant D5,938,031380,017

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129811
B0140131
C0132071
D0217092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6063911.500907%
B60631161.913244%
C60631502.474023%
D606388214.547254%

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 7308 6065 0 0 0.00% 0.00%
B 7308 6065 2 2 0.03% 0.03%
C 7308 6065 0 0 0.00% 0.00%
D 7308 6065 676 676 9.25% 11.15%

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 13 254 9784 55.09 817 801 163.1
A 11 47 9115 50.99 817 801 163.1
A 0 226 7153 38.96 817 801 163.1
B 0 190 233676 1519.65 810 792 153.2
B 0 197 21204 133.2 810 792 153.2
B 12 111 17570 109.48 810 792 153.2
C 14 238 124108 672.36 792 797 183.4
C 0 10 22210 116.75 792 797 183.4
C 13 61 5623 26.31 792 797 183.4
D 1 52 1921718 10409.19 766 747 184.5
D 1 239 997026 5398.55 766 747 184.5
D 13 249 84080 451.56 766 747 184.5

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