ASTROSAT CZTI

Data Quality Report

Orbit 29963

Creation date: 2024-06-27T20:09:15.069361
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_058T01_9000004298_29963cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29963cztM0_level2_quad_clean.evt
Size (bytes)733,357,44096,782,400
Size699.4 MB 92.3 MB
Events in quadrant A3,331,095662,075
Events in quadrant B5,032,786653,535
Events in quadrant C9,647,008572,278
Events in quadrant D3,787,745616,790

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135531
B0188253
C0329081
D0150631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6099811.328087%
B60991292.115101%
C6099193531.726513%
D60991462.393835%

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 7409 6100 0 0 0.00% 0.00%
B 7409 6100 9 9 0.12% 0.15%
C 7409 6100 1338 1338 18.06% 21.93%
D 7409 6100 74 74 1.00% 1.21%

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 12 96 13556 76.25 855 840 166.8
A 13 254 12025 67.07 855 840 166.8
A 8 192 11515 64.01 855 840 166.8
B 6 159 1715141 11137.99 826 808 153.9
B 4 80 57747 369.93 826 808 153.9
B 12 111 17622 109.24 826 808 153.9
C 3 233 6556946 37924.72 757 765 172.9
C 14 238 122956 706.82 757 765 172.9
C 2 114 13588 74.18 757 765 172.9
D 12 233 355676 1857.49 827 811 191.0
D 8 195 200110 1043.2 827 811 191.0
D 7 80 46919 241.35 827 811 191.0

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