ASTROSAT CZTI

Data Quality Report

Orbit 32930

Creation date: 2024-06-27T20:43:35.261413
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/AS1C07_005T01_9000004748_32930cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32930cztM0_level2_quad_clean.evt
Size (bytes)497,073,600106,073,280
Size474.0 MB 101.2 MB
Events in quadrant A2,687,058735,155
Events in quadrant B3,506,504741,760
Events in quadrant C2,642,356730,260
Events in quadrant D5,871,744646,927

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110593
B0136512
C0110112
D0211692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5114220.430192%
B51142084.067266%
C5114531.036371%
D51144859.483770%

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 7117 5115 15 15 0.21% 0.29%
B 7117 5115 140 140 1.97% 2.74%
C 7117 5115 40 40 0.56% 0.78%
D 7117 5115 422 422 5.93% 8.25%

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 0 143 152682 1198.16 622 610 126.9
A 12 16 35429 274.33 622 610 126.9
A 0 191 34581 267.65 622 610 126.9
B 0 219 274139 2346.86 625 611 116.6
B 5 172 251894 2156.0 625 611 116.6
B 5 32 222886 1907.11 625 611 116.6
C 0 10 160341 1140.33 608 613 140.1
C 1 241 56637 399.97 608 613 140.1
C 3 233 26184 182.56 608 613 140.1
D 8 195 1829537 12540.96 573 561 145.8
D 12 6 411314 2816.46 573 561 145.8
D 2 250 352953 2416.29 573 561 145.8

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