ASTROSAT CZTI

Data Quality Report

Orbit 10523

Creation date: 2024-06-27T16:00:30.429448
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_033T01_9000001524_10523cztM0_level2.evt modeM0/AS1A03_033T01_9000001524_10523cztM0_level2_quad_clean.evt
Size (bytes)317,162,88064,252,800
Size302.5 MB 61.3 MB
Events in quadrant A2,200,728407,634
Events in quadrant B2,572,915411,295
Events in quadrant C2,030,143429,385
Events in quadrant D2,497,548384,679

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02949919965
B03287122312
C02656617318
D03106220912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04125
B04125
C04123
D04224

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259164
B0259155
C0260170
D0260166

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4455561.257015%
B43131804.173429%
C4519180.398318%
D4335150.346021%

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 7766 5425 14 14 0.18% 0.26%
B 7766 5392 76 76 0.98% 1.41%
C 7766 5538 0 0 0.00% 0.00%
D 7766 5376 4 4 0.05% 0.07%

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 15 239 158083 1503.87 516 508 104.8
A 13 251 38923 366.63 516 508 104.8
A 3 80 13075 119.94 516 508 104.8
B 4 239 527954 5499.97 505 493 95.9
B 0 214 49048 506.3 505 493 95.9
B 0 187 11730 117.17 505 493 95.9
C 14 234 7184 55.82 516 518 119.4
C 14 238 5442 41.23 516 518 119.4
C 13 61 3822 27.67 516 518 119.4
D 8 195 297395 2573.31 482 469 115.4
D 2 16 274306 2373.21 482 469 115.4
D 13 137 48458 415.9 482 469 115.4

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