ASTROSAT CZTI

Data Quality Report

Orbit 14952

Creation date: 2024-06-27T17:01:44.440035
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/AS1T02_056T01_9000002210_14952cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14952cztM0_level2_quad_clean.evt
Size (bytes)595,477,44085,579,200
Size567.9 MB 81.6 MB
Events in quadrant A3,402,294563,829
Events in quadrant B3,493,514563,324
Events in quadrant C3,268,903543,073
Events in quadrant D7,450,294488,540

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137743
B0140552
C0132672
D0264522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6197861.387768%
B61971021.645958%
C6197490.790705%
D619784613.651767%

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 7528 6199 1 1 0.01% 0.02%
B 7528 6199 1 1 0.01% 0.02%
C 7528 6199 0 0 0.00% 0.00%
D 7527 6197 813 813 10.80% 13.12%

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 12 189 67494 390.96 851 834 170.5
A 9 143 16595 92.44 851 834 170.5
A 1 162 15543 86.27 851 834 170.5
B 0 219 44322 278.16 840 823 156.4
B 3 64 42830 268.62 840 823 156.4
B 0 205 28604 177.65 840 823 156.4
C 3 233 132118 717.1 802 809 183.1
C 10 22 7416 36.08 802 809 183.1
C 13 61 5809 27.31 802 809 183.1
D 7 254 4176643 22630.57 779 761 184.5
D 12 110 199419 1076.6 779 761 184.5
D 13 249 43756 233.0 779 761 184.5

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