ASTROSAT CZTI

Data Quality Report

Orbit 48030

Creation date: 2024-08-15T11:14:45.562174
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/AS1A13_053T01_9000006388_48030cztM0_level2.fits modeM0/AS1A13_053T01_9000006388_48030cztM0_level2_quad_clean.evt
Size (bytes)499,455,360118,457,280
Size476.3 MB 113.0 MB
Events in quadrant A7,111,597776,797
Events in quadrant B3,347,444806,843
Events in quadrant C3,321,719776,655
Events in quadrant D4,123,124702,658

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263500
B0155750
C0156070
D0177970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75271401.859971%
B7528540.717322%
C7528340.451647%
D75271622.152252%

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 7527 7527 13 13 0.17% 0.17%
B 7528 7528 1 1 0.01% 0.01%
C 7528 7528 9 9 0.12% 0.12%
D 7527 7527 141 141 1.87% 1.87%

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 10 83 3952800 23741.59 799 781 166.5
A 0 31 56093 332.28 799 781 166.5
A 13 254 13016 73.5 799 781 166.5
B 7 221 66863 418.8 804 776 157.8
B 5 255 51237 319.78 804 776 157.8
B 10 245 28349 174.73 804 776 157.8
C 0 207 97027 511.42 803 805 188.1
C 12 250 40457 210.75 803 805 188.1
C 14 67 23420 120.2 803 805 188.1
D 11 224 299009 1498.11 791 763 199.1
D 1 232 246227 1232.98 791 763 199.1
D 2 249 244634 1224.98 791 763 199.1

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