ASTROSAT CZTI

Data Quality Report

Orbit 10725

Creation date: 2024-06-27T16:03:19.959293
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/AS1A03_084T01_9000001544_10725cztM0_level2.evt modeM0/AS1A03_084T01_9000001544_10725cztM0_level2_quad_clean.evt
Size (bytes)444,142,08073,601,280
Size423.6 MB 70.2 MB
Events in quadrant A2,745,904476,898
Events in quadrant B4,180,419462,676
Events in quadrant C2,581,790465,944
Events in quadrant D3,565,098434,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117321
B0160241
C0114591
D0141761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5563430.772964%
B55634137.424052%
C5563240.431422%
D5563801.438073%

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 6848 5564 0 0 0.00% 0.00%
B 6848 5564 289 289 4.22% 5.19%
C 6848 5564 0 0 0.00% 0.00%
D 6848 5564 57 57 0.83% 1.02%

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 15 174 20854 142.59 692 679 141.5
A 1 162 20156 137.65 692 679 141.5
A 13 251 17637 119.85 692 679 141.5
B 4 239 1157607 9029.65 677 664 128.1
B 4 81 230279 1792.09 677 664 128.1
B 15 204 41594 319.45 677 664 128.1
C 13 61 5120 29.08 660 664 153.3
C 14 234 1988 8.64 660 664 153.3
C 1 0 1902 8.08 660 664 153.3
D 8 195 397816 2536.85 653 636 156.6
D 10 199 275427 1755.14 653 636 156.6
D 5 222 154653 983.73 653 636 156.6

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