ASTROSAT CZTI

Data Quality Report

Orbit 22861

Creation date: 2024-06-27T18:46:43.684680
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_054T01_9000003378_22861cztM0_level2.evt modeM0/AS1A07_054T01_9000003378_22861cztM0_level2_quad_clean.evt
Size (bytes)511,908,480126,622,080
Size488.2 MB 120.8 MB
Events in quadrant A3,566,911870,166
Events in quadrant B3,310,600869,090
Events in quadrant C3,143,336821,333
Events in quadrant D5,018,211797,882

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150621
B0142822
C0138701
D0195531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6834340.497512%
B6834350.512145%
C6834751.097454%
D68344055.926251%

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 7224 6835 11 11 0.15% 0.16%
B 7224 6835 0 0 0.00% 0.00%
C 7224 6835 0 0 0.00% 0.00%
D 7224 6835 261 261 3.61% 3.82%

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 11 47 427098 2602.59 810 793 163.8
A 13 254 11629 66.15 810 793 163.8
A 13 252 7680 42.05 810 793 163.8
B 0 189 58340 377.65 802 782 152.4
B 0 190 46218 298.11 802 782 152.4
B 0 228 30874 197.44 802 782 152.4
C 14 238 120933 666.07 771 772 180.4
C 7 247 12359 64.23 771 772 180.4
C 13 61 5341 25.33 771 772 180.4
D 7 238 1384546 7404.65 768 746 186.9
D 2 152 197652 1053.63 768 746 186.9
D 1 239 165082 879.35 768 746 186.9

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