ASTROSAT CZTI

Data Quality Report

Orbit 03863

Creation date: 2024-06-27T14:34:31.102431
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/AS1G05_189T01_9000000492_03863cztM0_level2.evt modeM0/AS1G05_189T01_9000000492_03863cztM0_level2_quad_clean.evt
Size (bytes)408,378,24072,290,880
Size389.5 MB 68.9 MB
Events in quadrant A3,134,953449,613
Events in quadrant B2,949,188454,001
Events in quadrant C3,169,253434,647
Events in quadrant D2,703,060428,256

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132782
B0127011
C0134241
D0125231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6044560.926539%
B6044570.943084%
C6044440.727995%
D6044290.479815%

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 7284 6044 8 8 0.11% 0.13%
B 7284 6044 2 2 0.03% 0.03%
C 7284 6044 18 18 0.25% 0.30%
D 7284 6044 2 2 0.03% 0.03%

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 15 188711 1285.56 718 706 146.2
A 15 234 129898 883.4 718 706 146.2
A 13 251 42506 285.82 718 706 146.2
B 15 204 65142 462.96 726 711 139.2
B 7 252 35333 248.77 726 711 139.2
B 14 167 23903 166.64 726 711 139.2
C 2 53 417966 2571.48 688 692 162.3
C 14 67 60815 370.51 688 692 162.3
C 13 61 5911 32.16 688 692 162.3
D 13 248 41869 244.94 686 669 168.2
D 2 206 31042 180.57 686 669 168.2
D 2 14 17036 97.31 686 669 168.2

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
Veto Counter