ASTROSAT CZTI

Data Quality Report

Orbit 04441

Creation date: 2024-06-27T14:42:07.424715
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_245T01_9000000554_04441cztM0_level2.evt modeM0/AS1G05_245T01_9000000554_04441cztM0_level2_quad_clean.evt
Size (bytes)395,688,96083,044,800
Size377.4 MB 79.2 MB
Events in quadrant A2,886,182530,544
Events in quadrant B2,974,610535,674
Events in quadrant C2,810,193520,750
Events in quadrant D2,890,890495,455

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126552
B0127991
C0125731
D0129191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6186190.307145%
B6186270.436469%
C6186110.177821%
D6186250.404138%

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 7346 6187 0 0 0.00% 0.00%
B 7346 6187 0 0 0.00% 0.00%
C 7346 6187 1 1 0.01% 0.02%
D 7346 6187 17 17 0.23% 0.27%

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 0 13 36151 237.73 738 727 149.0
A 12 194 7393 44.73 738 727 149.0
A 0 226 7316 44.22 738 727 149.0
B 14 167 65644 455.67 748 733 142.5
B 12 111 12879 85.26 748 733 142.5
B 11 111 9843 63.95 748 733 142.5
C 9 16 11363 64.03 716 723 166.2
C 9 247 7237 39.2 716 723 166.2
C 13 61 5937 31.38 716 723 166.2
D 2 63 125926 668.6 699 687 187.3
D 13 239 39088 205.01 699 687 187.3
D 8 112 33912 177.38 699 687 187.3

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