ASTROSAT CZTI

Data Quality Report

Orbit 05067

Creation date: 2024-06-27T14:50:51.556046
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/AS1G05_218T04_9000000640_05067cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05067cztM0_level2_quad_clean.evt
Size (bytes)493,047,36064,065,600
Size470.2 MB 61.1 MB
Events in quadrant A3,362,452372,940
Events in quadrant B3,380,402377,597
Events in quadrant C3,923,163364,856
Events in quadrant D3,808,535354,580

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141813
B0141882
C0157872
D0157982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67301882.793462%
B67301642.436850%
C67301452.154532%
D67302503.714710%

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 7845 6731 12 12 0.15% 0.18%
B 7845 6731 4 4 0.05% 0.06%
C 7845 6731 0 0 0.00% 0.00%
D 7845 6731 78 78 0.99% 1.16%

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 0 50 52370 296.83 842 825 173.6
A 13 251 51444 291.5 842 825 173.6
A 0 247 15239 83.01 842 825 173.6
B 15 54 38593 233.91 841 823 161.5
B 0 219 26326 157.94 841 823 161.5
B 12 111 14563 85.09 841 823 161.5
C 1 16 770510 4135.66 804 806 186.1
C 8 128 7207 34.39 804 806 186.1
C 13 61 6446 30.3 804 806 186.1
D 13 235 329048 1648.8 811 786 199.1
D 2 136 169231 846.07 811 786 199.1
D 13 239 127432 636.12 811 786 199.1

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