ASTROSAT CZTI

Data Quality Report

Orbit 11333

Creation date: 2024-06-27T16:11:25.987227
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/AS1G08_062T01_9000001660_11333cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11333cztM0_level2_quad_clean.evt
Size (bytes)536,587,20091,681,920
Size511.7 MB 87.4 MB
Events in quadrant A3,145,087603,109
Events in quadrant B5,546,687566,306
Events in quadrant C2,978,046608,286
Events in quadrant D4,158,925564,317

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132773
B0205792
C0128122
D0164242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6230190.304976%
B623076812.327448%
C6230100.160514%
D62302574.125201%

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 7576 6231 0 0 0.00% 0.00%
B 7576 6231 571 571 7.54% 9.16%
C 7576 6231 0 0 0.00% 0.00%
D 7576 6231 225 225 2.97% 3.61%

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 8 15 71992 458.67 774 759 155.3
A 1 162 24999 156.08 774 759 155.3
A 13 251 22872 142.38 774 759 155.3
B 3 64 1602509 11585.9 737 720 138.3
B 4 239 742037 5362.02 737 720 138.3
B 0 85 153109 1102.25 737 720 138.3
C 13 61 5615 27.44 763 768 176.6
C 3 202 1870 6.24 763 768 176.6
C 8 222 1809 5.89 763 768 176.6
D 10 253 549679 3067.92 740 720 178.9
D 1 52 413915 2309.19 740 720 178.9
D 2 120 151132 840.59 740 720 178.9

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