ASTROSAT CZTI

Data Quality Report

Orbit 29676

Creation date: 2024-06-27T20:06:43.714701
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_093T01_9000004274_29676cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29676cztM0_level2_quad_clean.evt
Size (bytes)302,999,04051,448,320
Size289.0 MB 49.1 MB
Events in quadrant A1,790,083337,575
Events in quadrant B1,828,843347,082
Events in quadrant C2,012,935314,079
Events in quadrant D3,294,920300,045

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076071
B076601
C082231
D0123241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3659691.885761%
B3659772.104400%
C36592065.629954%
D36592827.707024%

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 4614 3659 0 0 0.00% 0.00%
B 4614 3659 0 0 0.00% 0.00%
C 4614 3659 16 16 0.35% 0.44%
D 4614 3659 212 212 4.59% 5.79%

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 6486 63.96 461 451 94.4
A 1 113 5399 52.44 461 451 94.4
A 3 137 4572 43.67 461 451 94.4
B 0 229 18269 198.87 458 447 89.6
B 12 111 11027 118.06 458 447 89.6
B 11 111 10185 108.66 458 447 89.6
C 3 233 137823 1332.33 436 439 103.1
C 14 238 105027 1014.28 436 439 103.1
C 14 254 46601 447.67 436 439 103.1
D 7 80 1047636 10042.91 436 422 104.3
D 7 238 352707 3378.46 436 422 104.3
D 8 195 174489 1669.32 436 422 104.3

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