ASTROSAT CZTI

Data Quality Report

Orbit 28723

Creation date: 2024-06-27T19:55:25.534291
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_123T06_9000004122_28723cztM0_level2.evt modeM0/AS1A10_123T06_9000004122_28723cztM0_level2_quad_clean.evt
Size (bytes)566,078,40089,953,920
Size539.9 MB 85.8 MB
Events in quadrant A3,452,999564,508
Events in quadrant B3,692,140566,658
Events in quadrant C4,091,089546,849
Events in quadrant D5,414,932540,514

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149621
B0156201
C0167891
D0211071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72591201.653120%
B72601902.617080%
C72602463.388430%
D72604275.881543%

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 7389 7260 0 0 0.00% 0.00%
B 7390 7260 25 25 0.34% 0.34%
C 7390 7260 0 0 0.00% 0.00%
D 7390 7260 251 251 3.40% 3.46%

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 13080 67.86 890 870 179.9
A 15 174 12207 63.01 890 870 179.9
A 3 137 8655 43.27 890 870 179.9
B 4 80 132475 793.25 876 854 165.9
B 5 172 76862 458.09 876 854 165.9
B 12 111 20306 117.23 876 854 165.9
C 3 233 638316 3220.85 845 849 197.9
C 14 238 136859 687.2 845 849 197.9
C 8 128 9947 45.97 845 849 197.9
D 1 52 1311565 6337.53 852 825 206.8
D 8 195 555347 2681.16 852 825 206.8
D 12 233 207055 997.14 852 825 206.8

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