ASTROSAT CZTI

Data Quality Report

Orbit 08543

Creation date: 2024-06-27T15:34:05.350992
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/AS1G07_060T01_9000001200_08543cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08543cztM0_level2_quad_clean.evt
Size (bytes)493,824,96079,404,480
Size470.9 MB 75.7 MB
Events in quadrant A3,912,373470,867
Events in quadrant B3,694,137477,168
Events in quadrant C3,449,945474,895
Events in quadrant D3,389,025459,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167593
B0160522
C0156562
D0157542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74993174.227230%
B74992983.973863%
C74991481.973596%
D74991672.226964%

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 8674 7500 74 74 0.85% 0.99%
B 8674 7499 25 25 0.29% 0.33%
C 8674 7500 1 1 0.01% 0.01%
D 8674 7500 8 8 0.09% 0.11%

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 15 223 247261 1344.28 897 876 183.3
A 15 239 112107 606.88 897 876 183.3
A 13 248 40900 218.37 897 876 183.3
B 10 16 141170 792.98 902 875 176.9
B 0 214 38862 214.71 902 875 176.9
B 12 111 20634 111.68 902 875 176.9
C 9 54 16011 73.6 877 879 205.6
C 14 234 7319 31.32 877 879 205.6
C 13 61 6620 27.92 877 879 205.6
D 1 52 40123 181.22 869 844 216.7
D 2 234 23584 104.92 869 844 216.7
D 2 14 19239 84.87 869 844 216.7

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