ASTROSAT CZTI

Data Quality Report

Orbit 03186

Creation date: 2024-06-27T14:25:40.663573
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/AS1G05_127T01_9000000436_03186cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03186cztM0_level2_quad_clean.evt
Size (bytes)426,070,08072,020,160
Size406.3 MB 68.7 MB
Events in quadrant A2,715,910448,853
Events in quadrant B2,966,455452,994
Events in quadrant C4,102,896440,235
Events in quadrant D2,720,010429,156

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119992
B0126181
C0161011
D0122451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5855430.734415%
B5855490.836892%
C58553095.277541%
D5855200.341588%

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 6940 5855 0 0 0.00% 0.00%
B 6940 5856 11 11 0.16% 0.19%
C 6940 5856 300 300 4.32% 5.12%
D 6940 5856 7 7 0.10% 0.12%

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 0 226 7973 51.2 698 687 142.3
A 0 149 7801 50.0 698 687 142.3
A 12 194 7471 47.68 698 687 142.3
B 4 80 144450 1062.86 706 691 135.3
B 4 81 17237 122.33 706 691 135.3
B 15 85 17145 121.65 706 691 135.3
C 12 206 1337664 8666.66 658 663 154.3
C 6 80 104275 671.63 658 663 154.3
C 1 16 50975 326.13 658 663 154.3
D 13 120 57012 348.72 670 652 161.6
D 5 233 56425 345.09 670 652 161.6
D 13 223 32357 196.17 670 652 161.6

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