ASTROSAT CZTI

Data Quality Report

Orbit 11124

Creation date: 2024-06-27T16:08:36.503297
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_071T02_9000001620_11124cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11124cztM0_level2_quad_clean.evt
Size (bytes)689,250,240105,958,080
Size657.3 MB 101.0 MB
Events in quadrant A6,695,993649,129
Events in quadrant B5,012,152680,846
Events in quadrant C3,462,727690,156
Events in quadrant D5,174,866645,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250682
B0199601
C0158401
D0205461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A779889211.438830%
B77984205.385996%
C7798260.333419%
D77984375.604001%

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 8163 7799 595 595 7.29% 7.63%
B 8163 7799 214 214 2.62% 2.74%
C 8163 7799 1 1 0.01% 0.01%
D 8163 7799 294 294 3.60% 3.77%

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 5 3214994 17618.43 880 859 182.4
A 8 15 74863 405.66 880 859 182.4
A 14 63 12004 61.09 880 859 182.4
B 4 239 1232685 7182.5 896 874 171.5
B 15 204 100632 581.67 896 874 171.5
B 0 219 64714 372.24 896 874 171.5
C 13 61 6628 27.92 882 885 205.7
C 14 234 6411 26.87 882 885 205.7
C 8 128 5432 22.11 882 885 205.7
D 14 34 937499 4448.38 867 842 210.6
D 10 253 338882 1605.42 867 842 210.6
D 11 129 186025 879.47 867 842 210.6

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