ASTROSAT CZTI

Data Quality Report

Orbit 17598

Creation date: 2024-06-27T17:38:26.857044
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/AS1A05_056T01_9000002604_17598cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17598cztM0_level2_quad_clean.evt
Size (bytes)460,126,08083,949,120
Size438.8 MB 80.1 MB
Events in quadrant A3,492,139518,972
Events in quadrant B3,163,077542,140
Events in quadrant C3,779,938518,207
Events in quadrant D3,061,198512,390

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144722
B0133533
C0152002
D0133682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64591472.275894%
B6458220.340663%
C6458460.712295%
D645870.108393%

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 7619 6460 113 113 1.48% 1.75%
B 7618 6459 4 4 0.05% 0.06%
C 7618 6459 0 0 0.00% 0.00%
D 7618 6459 0 0 0.00% 0.00%

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 14 237 449725 2836.16 791 776 158.3
A 0 226 6630 36.98 791 776 158.3
A 3 137 5845 32.02 791 776 158.3
B 12 111 18547 116.66 805 786 152.2
B 11 111 16091 100.53 805 786 152.2
B 14 111 14197 88.09 805 786 152.2
C 3 233 540704 2960.48 782 787 182.4
C 14 238 121074 659.56 782 787 182.4
C 5 218 61799 334.54 782 787 182.4
D 4 239 38115 195.9 787 767 190.6
D 1 52 32077 164.23 787 767 190.6
D 2 234 23300 118.19 787 767 190.6

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