ASTROSAT CZTI

Data Quality Report

Orbit 24152

Creation date: 2024-06-27T19:02:48.492521
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_047T02_9000003574_24152cztM0_level2.evt modeM0/AS1A07_047T02_9000003574_24152cztM0_level2_quad_clean.evt
Size (bytes)482,541,120129,055,680
Size460.2 MB 123.1 MB
Events in quadrant A3,198,894884,222
Events in quadrant B3,390,392882,445
Events in quadrant C3,255,514837,958
Events in quadrant D4,301,237824,497

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140051
B0144901
C0142161
D0174191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6883530.770013%
B68841181.714120%
C6884781.133062%
D68842403.486345%

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 7358 6884 0 0 0.00% 0.00%
B 7359 6885 46 46 0.63% 0.67%
C 7359 6885 5 5 0.07% 0.07%
D 7359 6885 207 207 2.81% 3.01%

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 12011 67.41 826 808 166.2
A 3 1 11408 63.78 826 808 166.2
A 3 137 7392 39.62 826 808 166.2
B 0 245 123900 795.63 813 793 154.7
B 5 172 30741 193.55 813 793 154.7
B 12 111 18151 112.18 813 793 154.7
C 14 238 124119 680.44 777 780 181.3
C 0 207 69607 379.71 777 780 181.3
C 0 239 17076 89.9 777 780 181.3
D 7 238 1113612 5779.46 789 765 192.6
D 8 195 131392 678.4 789 765 192.6
D 2 234 33901 172.09 789 765 192.6

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