ASTROSAT CZTI

Data Quality Report

Orbit 05403

Creation date: 2024-06-27T14:54:49.167817
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_214T01_9000000684_05403cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05403cztM0_level2_quad_clean.evt
Size (bytes)641,289,60071,985,600
Size611.6 MB 68.7 MB
Events in quadrant A3,695,270424,700
Events in quadrant B3,671,292427,738
Events in quadrant C3,561,741430,680
Events in quadrant D7,997,259386,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015810
B015812
C015711
D015810

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173481264
B0169411210
C0167541255
D0304651581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73272203.002593%
B73312563.492020%
C7309861.176632%
D731691412.493166%

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 7813 7403 15 15 0.19% 0.20%
B 7839 7409 8 8 0.10% 0.11%
C 7837 7385 0 0 0.00% 0.00%
D 7810 7387 733 733 9.39% 9.92%

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 14 111 134368 724.13 892 871 184.4
A 0 50 82214 441.23 892 871 184.4
A 15 174 18431 95.25 892 871 184.4
B 15 204 45512 248.94 907 882 179.3
B 0 228 34634 188.27 907 882 179.3
B 4 48 25988 140.04 907 882 179.3
C 1 16 124022 597.41 870 875 206.1
C 14 67 21992 102.44 870 875 206.1
C 4 238 9883 43.7 870 875 206.1
D 2 63 4328506 20815.49 840 815 207.9
D 2 152 172720 826.83 840 815 207.9
D 2 33 64321 305.45 840 815 207.9

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