ASTROSAT CZTI

Data Quality Report

Orbit 31363

Creation date: 2024-06-27T20:27:17.783250
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_101T01_9000004546_31363cztM0_level2.evt modeM0/AS1A10_101T01_9000004546_31363cztM0_level2_quad_clean.evt
Size (bytes)559,249,92094,098,240
Size533.3 MB 89.7 MB
Events in quadrant A3,191,372618,323
Events in quadrant B5,199,717621,244
Events in quadrant C4,485,281567,381
Events in quadrant D3,613,368582,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137762
B0204132
C0178962
D0152692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6613490.740965%
B66131862.812642%
C66135328.044760%
D6613721.088765%

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 8598 6615 0 0 0.00% 0.00%
B 8598 6615 30 30 0.35% 0.45%
C 8598 6615 202 202 2.35% 3.05%
D 8598 6615 26 26 0.30% 0.39%

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 13774 77.97 827 812 166.2
A 3 137 8466 46.04 827 812 166.2
A 0 226 6714 35.5 827 812 166.2
B 6 159 1779365 11456.5 815 792 155.2
B 4 80 147275 943.56 815 792 155.2
B 0 190 56894 361.38 815 792 155.2
C 3 233 1208682 6649.28 771 777 181.7
C 14 238 134695 737.19 771 777 181.7
C 0 10 71753 390.71 771 777 181.7
D 8 195 428436 2270.88 795 775 188.3
D 10 203 83585 439.72 795 775 188.3
D 2 250 73166 384.4 795 775 188.3

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