ASTROSAT CZTI

Data Quality Report

Orbit 16547

Creation date: 2024-06-27T17:24:14.388083
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/AS1T03_018T01_9000002442_16547cztM0_level2.evt modeM0/AS1T03_018T01_9000002442_16547cztM0_level2_quad_clean.evt
Size (bytes)744,500,16066,911,040
Size710.0 MB 63.8 MB
Events in quadrant A3,512,357419,968
Events in quadrant B3,805,021426,957
Events in quadrant C11,172,561273,736
Events in quadrant D3,574,764407,446

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151083
B0158212
C0381752
D0156262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7133951.331838%
B71331261.766438%
C7133316644.385252%
D7133751.051451%

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 7813 7133 10 10 0.13% 0.14%
B 7813 7133 7 7 0.09% 0.10%
C 7813 7133 2572 2572 32.92% 36.06%
D 7813 7133 28 28 0.36% 0.39%

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 15 174 151301 854.4 869 849 176.1
A 15 223 9465 48.93 869 849 176.1
A 0 226 7707 38.95 869 849 176.1
B 15 35 139920 824.36 876 852 168.7
B 3 209 73016 427.77 876 852 168.7
B 0 229 60131 351.39 876 852 168.7
C 3 233 8302465 49553.02 707 712 167.5
C 14 238 107551 637.72 707 712 167.5
C 13 61 5060 25.95 707 712 167.5
D 1 52 269213 1294.04 845 820 207.4
D 10 70 92569 442.36 845 820 207.4
D 2 234 30038 140.87 845 820 207.4

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