ASTROSAT CZTI

Data Quality Report

Orbit 19332

Creation date: 2024-06-27T18:01:30.424540
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_204T01_9000002856_19332cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19332cztM0_level2_quad_clean.evt
Size (bytes)572,569,92073,091,520
Size546.0 MB 69.7 MB
Events in quadrant A3,493,247442,047
Events in quadrant B3,472,814446,053
Events in quadrant C3,450,392427,341
Events in quadrant D6,443,305403,739

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148512
B0146322
C0146012
D0240013

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7095941.324877%
B7096891.254228%
C7096921.296505%
D709580111.289641%

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 8635 7095 12 12 0.14% 0.17%
B 8636 7096 1 1 0.01% 0.01%
C 8636 7097 0 0 0.00% 0.00%
D 8635 7096 685 685 7.93% 9.65%

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 5 16 121568 688.86 867 846 175.2
A 4 2 18993 103.55 867 846 175.2
A 11 29 16986 92.1 867 846 175.2
B 0 229 64940 382.88 864 840 167.4
B 12 111 20853 119.54 864 840 167.4
B 11 111 18615 106.17 864 840 167.4
C 14 238 128031 653.25 828 832 194.7
C 3 233 71733 364.12 828 832 194.7
C 9 54 11816 56.41 828 832 194.7
D 11 176 1571799 8041.68 799 777 195.4
D 1 52 1403226 7178.8 799 777 195.4
D 10 66 303323 1548.66 799 777 195.4

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