ASTROSAT CZTI

Data Quality Report

Orbit 29097

Creation date: 2024-06-27T20:00:09.621427
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/AS1A10_063T01_9000004182_29097cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29097cztM0_level2_quad_clean.evt
Size (bytes)551,975,040104,186,880
Size526.4 MB 99.4 MB
Events in quadrant A3,339,052686,073
Events in quadrant B3,403,669704,712
Events in quadrant C3,442,196668,927
Events in quadrant D6,084,810635,745

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140622
B0142552
C0142472
D0226212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6602280.424114%
B6602660.999697%
C66021121.696456%
D66026169.330506%

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 7552 6603 0 0 0.00% 0.00%
B 7552 6603 3 3 0.04% 0.05%
C 7552 6603 2 2 0.03% 0.03%
D 7552 6603 680 680 9.00% 10.30%

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 6 16 74626 435.28 845 828 169.5
A 13 254 11492 62.9 845 828 169.5
A 3 137 7927 41.87 845 828 169.5
B 10 245 28584 174.01 844 822 159.5
B 0 183 25472 154.51 844 822 159.5
B 12 111 19485 116.98 844 822 159.5
C 14 238 130704 688.87 810 818 188.5
C 3 233 127866 673.82 810 818 188.5
C 2 114 15221 76.39 810 818 188.5
D 8 195 1879168 9923.12 790 772 189.3
D 1 52 844390 4456.63 790 772 189.3
D 12 233 288495 1519.97 790 772 189.3

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