ASTROSAT CZTI

Data Quality Report

Orbit 14984

Creation date: 2024-06-27T17:02:09.412138
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/AS1T02_056T01_9000002210_14984cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14984cztM0_level2_quad_clean.evt
Size (bytes)497,427,840101,759,040
Size474.4 MB 97.0 MB
Events in quadrant A3,623,670664,533
Events in quadrant B4,232,303660,549
Events in quadrant C3,355,632650,367
Events in quadrant D3,389,975631,126

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148552
B0167891
C0140811
D0148321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68201482.170088%
B68202293.357771%
C6820781.143695%
D68201482.170088%

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 7351 6822 16 16 0.22% 0.23%
B 7351 6822 106 106 1.44% 1.55%
C 7351 6822 0 0 0.00% 0.00%
D 7351 6822 48 48 0.65% 0.70%

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 1 162 123243 721.42 830 811 169.7
A 12 189 87548 511.09 830 811 169.7
A 13 248 73875 430.53 830 811 169.7
B 10 245 481353 3096.19 818 798 155.2
B 10 16 191761 1230.37 818 798 155.2
B 3 64 179058 1148.52 818 798 155.2
C 3 233 231588 1237.26 801 806 186.5
C 13 61 5914 27.38 801 806 186.5
C 8 222 2014 6.48 801 806 186.5
D 7 38 159697 805.67 806 782 197.2
D 13 249 59778 299.1 806 782 197.2
D 15 0 39850 198.07 806 782 197.2

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