ASTROSAT CZTI

Data Quality Report

Orbit 05470

Creation date: 2024-06-27T14:55:35.115181
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/AS1T01_138T01_9000000698_05470cztM0_level2.evt modeM0/AS1T01_138T01_9000000698_05470cztM0_level2_quad_clean.evt
Size (bytes)455,843,52080,300,160
Size434.7 MB 76.6 MB
Events in quadrant A3,167,840506,296
Events in quadrant B3,543,938509,895
Events in quadrant C2,907,588501,710
Events in quadrant D3,757,904474,093

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137093
B0146872
C0130722
D0155892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6307811.284287%
B6307440.697638%
C6307140.221976%
D63071602.536864%

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 7582 6308 10 10 0.13% 0.16%
B 7582 6308 2 2 0.03% 0.03%
C 7582 6308 1 1 0.01% 0.02%
D 7582 6308 123 123 1.62% 1.95%

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 0 247 97469 624.0 760 747 155.0
A 0 50 60307 384.25 760 747 155.0
A 14 111 42463 269.13 760 747 155.0
B 15 204 369533 2516.69 769 752 146.5
B 10 16 45662 306.48 769 752 146.5
B 14 167 38295 256.21 769 752 146.5
C 1 16 27605 161.88 727 730 166.0
C 9 247 23657 138.1 727 730 166.0
C 14 67 9970 55.66 727 730 166.0
D 2 33 654432 3666.77 722 701 178.3
D 2 152 135801 757.77 722 701 178.3
D 11 192 74956 416.5 722 701 178.3

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