ASTROSAT CZTI

Data Quality Report

Orbit 04259

Creation date: 2024-06-27T14:39:28.888069
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_240T01_9000000536_04259cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04259cztM0_level2_quad_clean.evt
Size (bytes)629,184,96069,848,640
Size600.0 MB 66.6 MB
Events in quadrant A4,123,157394,370
Events in quadrant B5,359,074406,156
Events in quadrant C3,453,436399,369
Events in quadrant D5,602,920384,629

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173213
B0213252
C0158212
D0217702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76233464.538895%
B76234606.034370%
C76231001.311819%
D76233434.499541%

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 8658 7624 173 173 2.00% 2.27%
B 8658 7624 151 151 1.74% 1.98%
C 8658 7625 0 0 0.00% 0.00%
D 8658 7625 265 265 3.06% 3.48%

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 0 199 422517 2277.69 895 875 185.1
A 8 15 83348 445.51 895 875 185.1
A 0 149 73420 391.88 895 875 185.1
B 5 184 1258392 7148.21 907 887 175.9
B 3 0 419030 2376.91 907 887 175.9
B 5 171 68822 386.17 907 887 175.9
C 13 61 7336 31.25 878 882 206.5
C 9 144 6418 26.81 878 882 206.5
C 8 128 6369 26.57 878 882 206.5
D 13 53 1072263 4995.34 873 846 214.5
D 9 85 652470 3038.11 873 846 214.5
D 2 232 190717 885.25 873 846 214.5

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