ASTROSAT CZTI

Data Quality Report

Orbit 28763

Creation date: 2024-06-27T19:55:59.460785
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/AS1A10_093T01_9000004128_28763cztM0_level2.evt modeM0/AS1A10_093T01_9000004128_28763cztM0_level2_quad_clean.evt
Size (bytes)600,834,24080,683,200
Size573.0 MB 76.9 MB
Events in quadrant A3,411,386530,283
Events in quadrant B3,917,609530,319
Events in quadrant C4,570,844482,533
Events in quadrant D5,867,835457,605

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137542
B0154072
C0179692
D0217442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6336811.278409%
B63362533.993056%
C63363245.113636%
D633666110.432449%

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 7631 6336 0 0 0.00% 0.00%
B 7631 6336 121 121 1.59% 1.91%
C 7631 6336 59 59 0.77% 0.93%
D 7631 6336 608 608 7.97% 9.60%

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 14 239 17721 96.1 878 865 175.4
A 13 254 10627 55.65 878 865 175.4
A 3 137 7592 38.35 878 865 175.4
B 5 255 455090 2825.44 861 842 160.8
B 4 80 77138 474.56 861 842 160.8
B 12 111 18627 110.62 861 842 160.8
C 3 233 1209104 6467.04 811 819 186.8
C 14 238 144536 769.21 811 819 186.8
C 4 254 28044 145.71 811 819 186.8
D 1 52 1855807 9884.8 799 778 187.7
D 8 195 909978 4844.81 799 778 187.7
D 12 233 39264 205.08 799 778 187.7

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