ASTROSAT CZTI

Data Quality Report

Orbit 10553

Creation date: 2024-06-27T16:00:37.280275
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/AS1A03_107T01_9000001530_10553cztM0_level2.evt modeM0/AS1A03_107T01_9000001530_10553cztM0_level2_quad_clean.evt
Size (bytes)2,272,775,040356,944,320
Size2.1 GB 340.4 MB
Events in quadrant A14,454,5222,224,139
Events in quadrant B20,103,0132,165,111
Events in quadrant C13,999,7332,212,963
Events in quadrant D18,200,7612,097,889

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0786154
B0786148
C0786149
D0772140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010321
B010624
C010624
D09816

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07874615520
B010207722734
C07894516486
D08881714892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A305971650.539269%
B3009416635.526018%
C305961080.352987%
D315272820.894471%

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 38994 31562 9 9 0.02% 0.03%
B 38995 31126 1142 1142 2.93% 3.67%
C 38995 31533 2 2 0.01% 0.01%
D 38995 31737 183 183 0.47% 0.58%

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 13 251 105034 137.98 3659 3594 735.2
A 1 162 101341 132.95 3659 3594 735.2
A 15 174 63771 81.85 3659 3594 735.2
B 4 239 5381014 8018.5 3577 3492 670.6
B 11 51 287743 423.85 3577 3492 670.6
B 0 214 152053 221.52 3577 3492 670.6
C 14 234 38862 42.91 3565 3594 821.9
C 4 175 38263 42.18 3565 3594 821.9
C 3 254 28349 30.12 3565 3594 821.9
D 8 195 1900997 2176.43 3603 3505 871.8
D 1 52 1248995 1428.58 3603 3505 871.8
D 2 16 799999 913.58 3603 3505 871.8

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