ASTROSAT CZTI

Data Quality Report

Orbit 07234

Creation date: 2024-06-27T15:17:37.593906
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/AS1G06_036T01_9000000988_07234cztM0_level2.evt modeM0/AS1G06_036T01_9000000988_07234cztM0_level2_quad_clean.evt
Size (bytes)106,378,56022,389,120
Size101.5 MB 21.4 MB
Events in quadrant A664,184150,074
Events in quadrant B1,073,901143,882
Events in quadrant C732,952148,948
Events in quadrant D666,692144,460

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027540
B039510
C029600
D027940

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A119020.168067%
B119017314.537815%
C119010.084034%
D119050.420168%

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 1190 1190 0 0 0.00% 0.00%
B 1190 1190 154 154 12.94% 12.94%
C 1190 1190 0 0 0.00% 0.00%
D 1190 1190 2 2 0.17% 0.17%

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 8 15 103644 3276.16 144 141 31.6
A 3 1 2577 77.11 144 141 31.6
A 0 226 1433 40.9 144 141 31.6
B 4 81 511591 18658.09 135 132 27.4
B 0 214 33665 1223.29 135 132 27.4
B 0 229 2502 86.46 135 132 27.4
C 9 68 200329 6004.38 136 136 33.3
C 13 61 1032 26.87 136 136 33.3
C 8 222 504 11.04 136 136 33.3
D 2 216 97804 2761.49 138 134 35.4
D 14 34 36023 1014.71 138 134 35.4
D 2 33 8582 238.86 138 134 35.4

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