ASTROSAT CZTI

Data Quality Report

Orbit 30099

Creation date: 2024-06-27T20:10:54.709369
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/AS1C05_019T01_9000004332_30099cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30099cztM0_level2_quad_clean.evt
Size (bytes)535,800,960127,679,040
Size511.0 MB 121.8 MB
Events in quadrant A3,272,451868,167
Events in quadrant B5,243,573864,007
Events in quadrant C3,536,289826,734
Events in quadrant D3,709,216829,943

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142451
B0207571
C0148141
D0154141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6876510.741710%
B68761231.788831%
C68761582.297848%
D6876841.221640%

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 7191 6878 2 2 0.03% 0.03%
B 7191 6878 3 3 0.04% 0.04%
C 7191 6878 0 0 0.00% 0.00%
D 7191 6878 20 20 0.28% 0.29%

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 0 13 113978 692.17 812 794 163.5
A 8 192 16702 97.28 812 794 163.5
A 13 254 13935 80.36 812 794 163.5
B 6 159 2030662 13179.38 801 780 154.0
B 4 171 41055 261.49 801 780 154.0
B 12 111 18748 116.66 801 780 154.0
C 3 233 320223 1776.39 774 779 179.8
C 14 238 141509 782.58 774 779 179.8
C 14 254 25334 136.55 774 779 179.8
D 1 52 263724 1370.63 784 763 191.9
D 13 104 181307 941.04 784 763 191.9
D 8 195 170595 885.21 784 763 191.9

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