ASTROSAT CZTI

Data Quality Report

Orbit 32056

Creation date: 2024-06-27T20:35:56.055025
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/AS1T04_046T01_9000004680_32056cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32056cztM0_level2_quad_clean.evt
Size (bytes)123,238,08027,256,320
Size117.5 MB 26.0 MB
Events in quadrant A634,315183,320
Events in quadrant B1,160,592180,091
Events in quadrant C704,285179,643
Events in quadrant D1,131,238173,488

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029290
B044770
C030400
D043830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A146300.000000%
B146350.341763%
C146330.205058%
D146420.136612%

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 1463 1463 0 0 0.00% 0.00%
B 1463 1463 4 4 0.27% 0.27%
C 1463 1463 2 2 0.14% 0.14%
D 1464 1464 1 1 0.07% 0.07%

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 3136 86.48 163 160 34.4
A 13 6 2424 65.79 163 160 34.4
A 3 137 1536 39.98 163 160 34.4
B 6 159 456456 13551.11 162 158 33.7
B 10 245 29453 870.0 162 158 33.7
B 0 190 14171 416.16 162 158 33.7
C 3 233 36728 956.06 153 155 38.3
C 14 238 25767 669.53 153 155 38.3
C 14 225 21990 570.79 153 155 38.3
D 8 195 528201 13520.38 154 149 39.1
D 2 234 8896 223.96 154 149 39.1
D 2 250 6406 160.21 154 149 39.1

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