ASTROSAT CZTI

Data Quality Report

Orbit 23442

Creation date: 2024-06-27T18:54:51.070195
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_127T01_9000003468_23442cztM0_level2.evt modeM0/AS1A07_127T01_9000003468_23442cztM0_level2_quad_clean.evt
Size (bytes)504,705,60079,585,920
Size481.3 MB 75.9 MB
Events in quadrant A2,748,255516,804
Events in quadrant B2,960,293518,770
Events in quadrant C3,061,111502,809
Events in quadrant D6,116,251460,519

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120351
B0126341
C0128671
D0223501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5883190.322964%
B5884520.883753%
C58841081.835486%
D5884110218.728756%

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 6428 5884 0 0 0.00% 0.00%
B 6429 5885 2 2 0.03% 0.03%
C 6429 5885 24 24 0.37% 0.41%
D 6429 5884 1026 1026 15.96% 17.44%

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 8917 56.6 712 696 145.2
A 3 137 6246 38.21 712 696 145.2
A 0 226 6021 36.66 712 696 145.2
B 0 229 70103 505.08 707 687 137.4
B 0 190 68480 493.27 707 687 137.4
B 0 189 32202 229.31 707 687 137.4
C 10 9 301654 1866.74 680 684 161.2
C 14 238 105431 649.69 680 684 161.2
C 7 247 6046 33.26 680 684 161.2
D 1 52 3392924 21113.32 653 634 160.7
D 7 238 110245 682.21 653 634 160.7
D 13 172 61700 380.07 653 634 160.7

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