ASTROSAT CZTI

Data Quality Report

Orbit 06545

Creation date: 2024-06-27T15:08:35.355260
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/AS1G06_091T01_9000000880_06545cztM0_level2.evt modeM0/AS1G06_091T01_9000000880_06545cztM0_level2_quad_clean.evt
Size (bytes)479,908,80099,239,040
Size457.7 MB 94.6 MB
Events in quadrant A3,865,410636,394
Events in quadrant B3,236,416655,199
Events in quadrant C2,867,436646,833
Events in quadrant D4,120,312610,501

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159512
B0140401
C0133051
D0168861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65471091.664885%
B65471061.619062%
C6547841.283030%
D65473895.941653%

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 7127 6549 0 0 0.00% 0.00%
B 7127 6549 8 8 0.11% 0.12%
C 7127 6549 0 0 0.00% 0.00%
D 7127 6549 201 201 2.82% 3.07%

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 15 236 783177 5199.04 739 722 150.5
A 8 15 191108 1265.02 739 722 150.5
A 14 111 32934 214.03 739 722 150.5
B 4 170 150652 1055.89 747 727 142.0
B 0 214 66299 461.81 747 727 142.0
B 0 219 34664 239.01 747 727 142.0
C 13 61 5749 29.38 732 733 170.8
C 8 128 5339 26.97 732 733 170.8
C 8 112 2636 11.14 732 733 170.8
D 2 33 798547 4560.18 714 691 175.0
D 2 152 266352 1518.39 714 691 175.0
D 14 34 67504 381.87 714 691 175.0

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