ASTROSAT CZTI

Data Quality Report

Orbit 19111

Creation date: 2024-06-27T17:59:10.371938
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/AS1T03_098T01_9000002836_19111cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19111cztM0_level2_quad_clean.evt
Size (bytes)526,152,960104,814,720
Size501.8 MB 100.0 MB
Events in quadrant A3,439,756666,269
Events in quadrant B3,830,989679,993
Events in quadrant C3,765,189663,258
Events in quadrant D4,389,269642,643

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154012
B0163901
C0160901
D0182701

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74991732.306974%
B75002263.013333%
C75001982.640000%
D75003094.120000%

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 7634 7500 0 0 0.00% 0.00%
B 7635 7501 37 37 0.48% 0.49%
C 7635 7501 2 2 0.03% 0.03%
D 7635 7501 139 139 1.82% 1.85%

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 0 226 7584 37.07 891 870 181.1
A 3 137 6943 33.53 891 870 181.1
A 8 205 6766 32.55 891 870 181.1
B 10 245 116095 671.16 890 866 171.7
B 7 220 89342 515.33 890 866 171.7
B 3 112 49151 281.24 890 866 171.7
C 3 233 274760 1360.52 853 857 201.3
C 14 238 132298 652.89 853 857 201.3
C 0 207 28055 135.1 853 857 201.3
D 12 218 361031 1679.65 859 831 214.4
D 11 176 333257 1550.14 859 831 214.4
D 1 52 248515 1154.98 859 831 214.4

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