ASTROSAT CZTI

Data Quality Report

Orbit 10300

Creation date: 2024-06-27T15:57:37.275930
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/AS1A03_072T01_9000001484_10300cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10300cztM0_level2_quad_clean.evt
Size (bytes)297,887,04047,998,080
Size284.1 MB 45.8 MB
Events in quadrant A2,045,745286,142
Events in quadrant B2,396,461290,961
Events in quadrant C1,965,430285,171
Events in quadrant D2,301,806269,403

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092821
B0102581
C092015
D098713

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A456490.197195%
B4564521.139351%
C456260.131521%
D4563270.591716%

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 5344 4565 0 0 0.00% 0.00%
B 5344 4565 26 26 0.49% 0.57%
C 5344 4565 0 0 0.00% 0.00%
D 5344 4565 17 17 0.32% 0.37%

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 47155 434.91 516 506 107.3
A 8 5 5624 47.71 516 506 107.3
A 0 226 4786 39.9 516 506 107.3
B 4 239 278018 2721.69 522 509 102.0
B 11 51 36297 350.99 522 509 102.0
B 0 214 34558 333.94 522 509 102.0
C 13 61 3795 27.86 503 506 118.1
C 14 234 2496 16.86 503 506 118.1
C 14 67 1974 12.43 503 506 118.1
D 8 195 211055 1736.75 496 481 121.2
D 12 233 47807 390.33 496 481 121.2
D 2 33 47413 387.08 496 481 121.2

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