ASTROSAT CZTI

Data Quality Report

Orbit 11334

Creation date: 2024-06-27T16:11:27.421699
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_062T01_9000001660_11334cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11334cztM0_level2_quad_clean.evt
Size (bytes)506,759,04087,635,520
Size483.3 MB 83.6 MB
Events in quadrant A3,243,194567,407
Events in quadrant B4,751,529549,192
Events in quadrant C2,977,697573,099
Events in quadrant D3,944,909522,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136963
B0182962
C0129882
D0159342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6328490.774336%
B63285158.138432%
C6328170.268647%
D63282443.855879%

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 7593 6329 0 0 0.00% 0.00%
B 7593 6329 308 308 4.06% 4.87%
C 7593 6329 0 0 0.00% 0.00%
D 7593 6329 161 161 2.12% 2.54%

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 8 15 77371 495.23 769 754 154.7
A 13 210 73937 473.04 769 754 154.7
A 13 251 55139 351.53 769 754 154.7
B 4 239 1199227 8446.01 757 737 141.9
B 3 64 495116 3483.99 757 737 141.9
B 3 189 37432 258.6 757 737 141.9
C 13 61 5529 26.94 762 767 176.8
C 12 4 3127 13.35 762 767 176.8
C 1 3 2249 8.38 762 767 176.8
D 1 52 554580 3119.67 736 716 177.5
D 2 120 194194 1089.77 736 716 177.5
D 10 253 162036 908.64 736 716 177.5

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