ASTROSAT CZTI

Data Quality Report

Orbit 23984

Creation date: 2024-06-27T19:01:54.456133
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/AS1C05_002T08_9000003556_23984cztM0_level2.evt modeM0/AS1C05_002T08_9000003556_23984cztM0_level2_quad_clean.evt
Size (bytes)524,583,36060,949,440
Size500.3 MB 58.1 MB
Events in quadrant A2,505,704410,578
Events in quadrant B2,688,772412,112
Events in quadrant C2,541,661391,810
Events in quadrant D7,829,994298,164

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103590
B0108570
C0103160
D0265720

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4730140.295983%
B4731581.225956%
C4731340.718664%
D4731217045.867681%

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 4730 4730 0 0 0.00% 0.00%
B 4731 4731 14 14 0.30% 0.30%
C 4731 4731 1 1 0.02% 0.02%
D 4731 4731 1596 1596 33.73% 33.73%

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 7506 52.99 650 640 129.6
A 0 226 5571 38.06 650 640 129.6
A 3 137 5372 36.52 650 640 129.6
B 0 197 147021 1217.66 642 630 120.2
B 0 230 17658 141.64 642 630 120.2
B 12 111 14031 111.47 642 630 120.2
C 14 238 100895 700.8 619 624 143.1
C 0 10 26375 179.98 619 624 143.1
C 13 61 4345 26.01 619 624 143.1
D 12 218 4909226 38418.13 516 500 127.8
D 1 52 249893 1951.87 516 500 127.8
D 12 250 217673 1699.7 516 500 127.8

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