ASTROSAT CZTI

Data Quality Report

Orbit 20230704_T05_132T01_9000005730_level2

Creation date: 2023-07-05T23:09:35.173595
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/AS1T05_132T01_9000005730cztM0_level2.fits modeM0/AS1T05_132T01_9000005730cztM0_level2_quad_clean.evt
Size (bytes)336,620,160374,400,000
Size321.0 MB 357.1 MB
Events in quadrant A2,036,9882,346,593
Events in quadrant B1,963,0562,366,773
Events in quadrant C2,000,1562,253,680
Events in quadrant D1,580,4361,759,452

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07780
B07780
C07780
D07780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0811380
B0794120
C0763080
D01675150

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01530
B01530
C01530
D01530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38031770.202466%
B380311500.394415%
C38031160.042071%
D38031486812.800084%

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 53422 38031 0 0 0.00% 0.00%
B 53422 38031 0 0 0.00% 0.00%
C 53422 38031 0 0 0.00% 0.00%
D 53422 37947 0 0 0.00% 0.00%

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 7 110 1710 8.99 533 502 134.4
A 0 29 1708 8.97 533 502 134.4
A 9 19 1703 8.94 533 502 134.4
B 2 9 1662 11.57 519 498 100.6
B 3 80 1468 9.64 519 498 100.6
B 3 17 1365 8.62 519 498 100.6
C 1 81 1678 8.65 528 495 136.8
C 3 203 1579 7.92 528 495 136.8
C 1 80 1567 7.83 528 495 136.8
D 10 189 1237 6.79 451 412 121.4
D 7 3 1200 6.49 451 412 121.4
D 4 160 1192 6.42 451 412 121.4

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