ASTROSAT CZTI

Data Quality Report

Orbit 23029

Creation date: 2024-06-27T18:48:59.272459
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_004T01_9000003404_23029cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23029cztM0_level2_quad_clean.evt
Size (bytes)631,523,52097,493,760
Size602.3 MB 93.0 MB
Events in quadrant A3,201,761639,171
Events in quadrant B3,426,751662,114
Events in quadrant C3,703,135628,291
Events in quadrant D8,356,757571,165

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135762
B0142262
C0152642
D0294082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6474350.540624%
B6474821.266605%
C64741382.131603%
D64735889.083887%

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 7849 6475 0 0 0.00% 0.00%
B 7849 6475 28 28 0.36% 0.43%
C 7849 6475 26 26 0.33% 0.40%
D 7848 6474 402 402 5.12% 6.21%

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 13 254 9281 51.4 830 817 164.7
A 0 226 7122 38.29 830 817 164.7
A 3 137 6773 36.17 830 817 164.7
B 4 216 97582 632.7 836 816 152.9
B 0 189 40542 259.75 836 816 152.9
B 12 111 17957 112.08 836 816 152.9
C 0 207 354439 1908.25 807 815 185.3
C 14 238 132105 708.48 807 815 185.3
C 0 10 54760 291.1 807 815 185.3
D 1 52 4226600 22401.13 788 766 188.6
D 13 153 360650 1907.74 788 766 188.6
D 13 174 310945 1644.26 788 766 188.6

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