ASTROSAT CZTI

Data Quality Report

Orbit 06192

Creation date: 2024-06-27T15:03:57.668423
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/AS1A02_085T02_9000000808_06192cztM0_level2.evt modeM0/AS1A02_085T02_9000000808_06192cztM0_level2_quad_clean.evt
Size (bytes)473,855,04078,143,040
Size451.9 MB 74.5 MB
Events in quadrant A3,153,136484,072
Events in quadrant B4,168,711473,183
Events in quadrant C3,117,852482,823
Events in quadrant D3,462,236465,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136563
B0165722
C0136012
D0145492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601630.954401%
B66012774.196334%
C6601510.772610%
D6601650.984699%

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 7726 6601 1 1 0.01% 0.02%
B 7726 6601 160 160 2.07% 2.42%
C 7726 6602 0 0 0.00% 0.00%
D 7726 6601 11 11 0.14% 0.17%

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 48520 292.82 800 784 163.0
A 15 239 26026 154.84 800 784 163.0
A 0 226 7720 42.55 800 784 163.0
B 3 64 824833 5544.81 789 771 148.6
B 4 81 71750 477.59 789 771 148.6
B 0 214 67092 446.25 789 771 148.6
C 1 16 75432 421.34 769 773 177.2
C 7 159 31224 171.85 769 773 177.2
C 9 16 8382 42.94 769 773 177.2
D 2 63 127747 674.53 773 749 188.3
D 12 110 86798 457.04 773 749 188.3
D 5 97 85307 449.12 773 749 188.3

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