ASTROSAT CZTI

Data Quality Report

Orbit 29499

Creation date: 2024-06-27T20:04:57.297453
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_094T06_9000004248_29499cztM0_level2.evt modeM0/AS1A10_094T06_9000004248_29499cztM0_level2_quad_clean.evt
Size (bytes)240,776,64031,642,560
Size229.6 MB 30.2 MB
Events in quadrant A1,084,115217,294
Events in quadrant B1,191,789224,542
Events in quadrant C1,233,158211,943
Events in quadrant D3,653,842166,723

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043991
B048331
C050871
D0121321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1876371.972281%
B1876542.878465%
C18761095.810235%
D187684444.989339%

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 3191 1877 0 0 0.00% 0.00%
B 3191 1877 1 1 0.03% 0.05%
C 3191 1876 0 0 0.00% 0.00%
D 3191 1877 881 881 27.61% 46.94%

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 13 8073 138.37 278 274 56.4
A 13 254 3721 61.16 278 274 56.4
A 0 226 2324 36.37 278 274 56.4
B 5 255 76680 1448.82 281 276 52.7
B 0 190 9493 174.78 281 276 52.7
B 12 111 5586 100.69 281 276 52.7
C 3 233 67643 1058.23 274 276 63.7
C 14 238 64392 1007.16 274 276 63.7
C 14 254 25641 398.45 274 276 63.7
D 8 195 2114065 37548.43 234 228 56.3
D 7 238 291863 5180.36 234 228 56.3
D 13 153 134879 2391.83 234 228 56.3

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