ASTROSAT CZTI

Data Quality Report

Orbit 19632

Creation date: 2024-06-27T18:04:59.278654
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/AS1A05_012T01_9000002918_19632cztM0_level2.evt modeM0/AS1A05_012T01_9000002918_19632cztM0_level2_quad_clean.evt
Size (bytes)623,439,360101,004,480
Size594.6 MB 96.3 MB
Events in quadrant A3,793,954653,060
Events in quadrant B5,640,908642,373
Events in quadrant C3,788,001628,435
Events in quadrant D5,149,035611,820

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162090
B0217950
C0160280
D0203330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75132593.447358%
B75145056.720788%
C75142623.486825%
D75143795.043918%

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 7513 7513 21 21 0.28% 0.28%
B 7514 7514 213 213 2.83% 2.83%
C 7514 7514 0 0 0.00% 0.00%
D 7514 7514 204 204 2.71% 2.71%

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 5 16 180706 933.17 938 915 192.7
A 0 226 8362 38.65 938 915 192.7
A 3 137 7479 34.07 938 915 192.7
B 3 112 1821493 10154.0 919 894 179.3
B 7 220 65411 359.83 919 894 179.3
B 4 216 41644 227.27 919 894 179.3
C 14 238 135973 640.42 891 897 210.9
C 3 233 100845 473.87 891 897 210.9
C 7 247 71522 334.85 891 897 210.9
D 7 238 655451 2927.37 909 881 223.6
D 1 20 441222 1969.3 909 881 223.6
D 1 52 409417 1827.06 909 881 223.6

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