ASTROSAT CZTI

Data Quality Report

Orbit 29272

Creation date: 2024-06-27T20:02:06.732758
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_045T08_9000004208_29272cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29272cztM0_level2_quad_clean.evt
Size (bytes)634,089,60084,574,080
Size604.7 MB 80.7 MB
Events in quadrant A3,425,307525,679
Events in quadrant B3,759,371533,059
Events in quadrant C6,166,610506,793
Events in quadrant D5,375,383504,868

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145901
B0156551
C0234711
D0206498

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7049670.950489%
B70491141.617251%
C70496809.646758%
D70483444.880817%

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 7489 7050 0 0 0.00% 0.00%
B 7489 7050 8 8 0.11% 0.11%
C 7489 7050 13 13 0.17% 0.18%
D 7488 7049 251 251 3.35% 3.56%

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 13998 73.45 885 868 178.8
A 3 137 8727 43.97 885 868 178.8
A 1 113 7931 39.51 885 868 178.8
B 0 229 176357 1038.99 878 855 168.9
B 10 245 88625 519.61 878 855 168.9
B 0 183 26835 153.8 878 855 168.9
C 3 233 2625192 13532.88 825 832 193.9
C 14 238 197702 1015.19 825 832 193.9
C 14 254 93939 480.12 825 832 193.9
D 8 195 727313 3558.7 856 834 204.1
D 1 52 628407 3074.21 856 834 204.1
D 7 238 495887 2425.05 856 834 204.1

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