ASTROSAT CZTI

Data Quality Report

Orbit 30323

Creation date: 2024-06-27T20:13:41.859403
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_071T29_9000004358_30323cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30323cztM0_level2_quad_clean.evt
Size (bytes)309,294,72048,839,040
Size295.0 MB 46.6 MB
Events in quadrant A1,948,052309,023
Events in quadrant B3,100,651312,757
Events in quadrant C2,058,001301,390
Events in quadrant D2,008,694294,409

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081162
B0117631
C084031
D084701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3689681.843318%
B36891243.361345%
C36891413.822174%
D3689501.355381%

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 4879 3689 1 1 0.02% 0.03%
B 4879 3689 5 5 0.10% 0.14%
C 4879 3689 0 0 0.00% 0.00%
D 4879 3689 4 4 0.08% 0.11%

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 5 203 20862 204.36 495 486 99.7
A 8 192 11465 110.11 495 486 99.7
A 13 254 6852 63.85 495 486 99.7
B 6 159 999516 10675.52 487 474 93.6
B 6 36 177801 1894.87 487 474 93.6
B 12 111 11523 118.07 487 474 93.6
C 14 238 93726 830.83 475 478 112.2
C 3 233 82840 733.84 475 478 112.2
C 14 254 20599 179.28 475 478 112.2
D 13 104 111446 977.27 480 469 113.6
D 8 195 45851 399.64 480 469 113.6
D 2 250 26047 225.24 480 469 113.6

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