ASTROSAT CZTI

Data Quality Report

Orbit 29589

Creation date: 2024-06-27T20:05:47.833873
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/AS1A10_093T01_9000004266_29589cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29589cztM0_level2_quad_clean.evt
Size (bytes)610,813,44070,608,960
Size582.5 MB 67.3 MB
Events in quadrant A3,971,249431,785
Events in quadrant B5,468,164451,738
Events in quadrant C3,180,208422,640
Events in quadrant D5,457,536396,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156591
B0205451
C0132341
D0204181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62243415.478792%
B62253635.831325%
C62252534.064257%
D62254497.212851%

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 7279 6224 234 234 3.21% 3.76%
B 7280 6225 137 137 1.88% 2.20%
C 7280 6226 0 0 0.00% 0.00%
D 7280 6226 361 361 4.96% 5.80%

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 0 13 1005339 6569.82 764 749 152.9
A 13 254 12021 73.72 764 749 152.9
A 12 96 10138 61.4 764 749 152.9
B 0 189 2090431 14173.42 772 751 147.4
B 15 33 325300 2201.28 772 751 147.4
B 12 111 17311 112.32 772 751 147.4
C 14 238 164051 952.96 741 745 171.4
C 14 254 63632 366.97 741 745 171.4
C 3 233 41905 240.19 741 745 171.4
D 7 80 685649 3938.98 731 714 173.9
D 13 153 555205 3188.81 731 714 173.9
D 12 227 490461 2816.48 731 714 173.9

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