ASTROSAT CZTI

Data Quality Report

Orbit 09511

Creation date: 2024-06-27T15:47:04.525854
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_230T06_9000001350_09511cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09511cztM0_level2_quad_clean.evt
Size (bytes)518,351,040103,772,160
Size494.3 MB 99.0 MB
Events in quadrant A4,438,041680,731
Events in quadrant B3,408,525685,689
Events in quadrant C3,123,905670,222
Events in quadrant D4,277,675643,521

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177853
B0142962
C0137482
D0171902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66312313.483637%
B6631941.417584%
C6631460.693711%
D66321822.744270%

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 7716 6632 13 13 0.17% 0.20%
B 7716 6632 3 3 0.04% 0.05%
C 7716 6632 2 2 0.03% 0.03%
D 7717 6633 100 100 1.30% 1.51%

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 5 902430 5330.37 832 816 169.1
A 1 162 157603 926.93 832 816 169.1
A 1 178 63479 370.47 832 816 169.1
B 0 214 83742 522.49 829 809 158.7
B 0 219 50450 312.74 829 809 158.7
B 10 247 16449 98.53 829 809 158.7
C 13 61 5922 27.68 797 802 185.0
C 1 0 4898 22.14 797 802 185.0
C 12 4 4808 21.65 797 802 185.0
D 1 52 565083 2722.57 796 778 207.3
D 7 71 224067 1077.29 796 778 207.3
D 12 233 133143 638.61 796 778 207.3

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