ASTROSAT CZTI

Data Quality Report

Orbit 23093

Creation date: 2024-06-27T18:49:40.574962
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/AS1A07_049T01_9000003408_23093cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23093cztM0_level2_quad_clean.evt
Size (bytes)701,968,32095,221,440
Size669.4 MB 90.8 MB
Events in quadrant A10,112,474460,691
Events in quadrant B3,519,576658,490
Events in quadrant C3,522,317631,631
Events in quadrant D3,609,912623,522

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0348451
B0152491
C0152321
D0157042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7308278238.067871%
B73091301.778629%
C73091311.792311%
D7308700.957854%

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 7632 7307 2329 2329 30.52% 31.87%
B 7634 7311 3 3 0.04% 0.04%
C 7634 7311 3 3 0.04% 0.04%
D 7633 7310 8 8 0.10% 0.11%

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 6 16 7432327 52486.01 694 679 141.6
A 13 254 7848 50.63 694 679 141.6
A 3 137 6225 39.17 694 679 141.6
B 0 183 41082 237.66 871 847 169.3
B 0 189 23949 136.46 871 847 169.3
B 12 111 21091 119.58 871 847 169.3
C 14 238 130165 655.58 838 842 197.3
C 0 10 75166 376.77 838 842 197.3
C 0 207 38665 191.74 838 842 197.3
D 12 227 138269 658.46 853 828 208.7
D 13 172 115965 551.61 853 828 208.7
D 1 52 89398 424.33 853 828 208.7

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