ASTROSAT CZTI

Data Quality Report

Orbit 06528

Creation date: 2024-06-27T15:08:26.770659
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/AS1G06_136T02_9000000876_06528cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06528cztM0_level2_quad_clean.evt
Size (bytes)1,304,127,360284,690,880
Size1.2 GB 271.5 MB
Events in quadrant A9,394,2161,815,223
Events in quadrant B10,172,2161,856,856
Events in quadrant C8,995,7291,823,344
Events in quadrant D9,556,2511,726,212

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0422765
B0443204
C0416504
D0433864

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04120
B04120
C04120
D04120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20364640.314280%
B203642781.365154%
C20364500.245531%
D203641600.785700%

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 25464 20368 0 0 0.00% 0.00%
B 25464 20368 109 109 0.43% 0.54%
C 25464 20368 0 0 0.00% 0.00%
D 25464 20368 66 66 0.26% 0.32%

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 15 236 226934 468.92 2372 2327 479.0
A 0 226 22764 42.67 2372 2327 479.0
A 12 194 21418 39.86 2372 2327 479.0
B 4 48 389306 867.17 2390 2338 446.2
B 4 81 123144 270.72 2390 2338 446.2
B 4 170 120589 264.99 2390 2338 446.2
C 12 4 18914 31.49 2299 2312 527.2
C 13 61 18214 30.17 2299 2312 527.2
C 9 237 8206 11.18 2299 2312 527.2
D 2 33 156731 279.06 2278 2213 553.7
D 2 152 151464 269.54 2278 2213 553.7
D 12 233 130986 232.56 2278 2213 553.7

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