ASTROSAT CZTI

Data Quality Report

Orbit 11114

Creation date: 2024-06-27T16:08:27.701643
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/AS1G08_071T02_9000001620_11114cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11114cztM0_level2_quad_clean.evt
Size (bytes)597,107,52084,965,760
Size569.4 MB 81.0 MB
Events in quadrant A6,389,783522,418
Events in quadrant B3,681,025561,155
Events in quadrant C2,899,156550,788
Events in quadrant D4,689,821501,257

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233323
B0149362
C0127292
D0180172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A625772211.539076%
B62571141.821959%
C625770.111875%
D62574126.584625%

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 7517 6258 565 565 7.52% 9.03%
B 7517 6258 57 57 0.76% 0.91%
C 7517 6258 0 0 0.00% 0.00%
D 7517 6258 338 338 4.50% 5.40%

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 5 3387791 22756.35 738 725 148.8
A 8 15 108695 725.41 738 725 148.8
A 11 29 27685 181.13 738 725 148.8
B 4 239 465963 3205.29 769 752 145.1
B 0 219 52509 356.6 769 752 145.1
B 15 204 44697 302.78 769 752 145.1
C 13 61 5562 27.9 742 747 172.6
C 5 32 2712 11.39 742 747 172.6
C 1 3 2479 10.04 742 747 172.6
D 10 253 766656 4449.61 713 694 172.1
D 1 52 483518 2804.81 713 694 172.1
D 2 120 288932 1674.42 713 694 172.1

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