ASTROSAT CZTI

Data Quality Report

Orbit 31553

Creation date: 2024-06-27T20:29:52.672873
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_056T01_9000004598_31553cztM0_level2.evt modeM0/AS1A10_056T01_9000004598_31553cztM0_level2_quad_clean.evt
Size (bytes)132,992,64027,809,280
Size126.8 MB 26.5 MB
Events in quadrant A798,801191,206
Events in quadrant B1,226,875189,243
Events in quadrant C901,155188,435
Events in quadrant D1,005,924171,008

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055562264
B080303599
C060652399
D079094049

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05121
B05317
C05220
D05323

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1379231.667875%
B13301027.669173%
C1385815.848375%
D1323534.006047%

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 6625 1457 0 0 0.00% 0.00%
B 6505 1390 14 14 0.22% 1.01%
C 6631 1471 2 2 0.03% 0.14%
D 6501 1364 13 13 0.20% 0.95%

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 2817 61.21 206 202 42.7
A 3 137 1906 39.89 206 202 42.7
A 0 226 1731 35.79 206 202 42.7
B 6 159 349956 8995.26 198 194 38.9
B 5 172 64870 1663.35 198 194 38.9
B 4 80 19024 484.27 198 194 38.9
C 14 238 32964 666.9 204 204 49.1
C 0 10 27790 561.57 204 204 49.1
C 3 233 25062 506.04 204 204 49.1
D 8 195 164915 3383.03 196 190 48.7
D 13 249 59953 1227.38 196 190 48.7
D 2 250 19522 397.03 196 190 48.7

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