ASTROSAT CZTI

Data Quality Report

Orbit 12153

Creation date: 2024-06-27T16:23:06.890176
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/AS1G08_065T01_9000001796_12153cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12153cztM0_level2_quad_clean.evt
Size (bytes)507,458,88093,810,240
Size484.0 MB 89.5 MB
Events in quadrant A3,197,270608,793
Events in quadrant B5,516,964584,224
Events in quadrant C2,931,735602,190
Events in quadrant D3,272,552583,498

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137873
B0207162
C0133932
D0143632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6629540.814603%
B66296549.865741%
C6629170.256449%
D6629811.221904%

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 7605 6631 5 5 0.07% 0.08%
B 7605 6631 410 410 5.39% 6.18%
C 7605 6631 0 0 0.00% 0.00%
D 7605 6631 42 42 0.55% 0.63%

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 1 162 61085 380.36 781 764 158.6
A 5 16 30368 186.67 781 764 158.6
A 8 15 25794 157.83 781 764 158.6
B 4 239 1083293 7547.32 750 731 143.4
B 0 85 1037874 7230.67 750 731 143.4
B 15 204 105718 731.94 750 731 143.4
C 15 208 10432 55.59 748 750 174.2
C 13 61 5555 27.59 748 750 174.2
C 14 234 2950 12.63 748 750 174.2
D 1 52 172348 959.52 749 728 178.9
D 10 199 71647 396.5 749 728 178.9
D 10 50 47944 263.98 749 728 178.9

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