ASTROSAT CZTI

Data Quality Report

Orbit 29284

Creation date: 2024-06-27T20:02:20.493174
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_021T10_9000004210_29284cztM0_level2.evt modeM0/AS1A10_021T10_9000004210_29284cztM0_level2_quad_clean.evt
Size (bytes)616,245,12092,306,880
Size587.7 MB 88.0 MB
Events in quadrant A3,160,990626,547
Events in quadrant B3,657,099626,550
Events in quadrant C4,898,601556,930
Events in quadrant D6,529,079554,367

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129551
B0144741
C0191621
D0238391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61671081.751257%
B61672714.394357%
C616780313.020918%
D616780413.037133%

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 7352 6168 0 0 0.00% 0.00%
B 7352 6168 121 121 1.65% 1.96%
C 7351 6167 0 0 0.00% 0.00%
D 7352 6168 519 519 7.06% 8.41%

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 12385 71.25 819 804 162.5
A 3 137 7447 40.87 819 804 162.5
A 0 226 7101 38.74 819 804 162.5
B 0 229 452676 3097.36 791 773 145.9
B 10 245 62813 425.22 791 773 145.9
B 12 111 16697 109.14 791 773 145.9
C 3 233 1509997 9017.98 732 738 167.4
C 14 238 280744 1673.07 732 738 167.4
C 14 254 236314 1407.59 732 738 167.4
D 1 52 1771368 9876.11 757 740 179.3
D 8 195 777249 4331.17 757 740 179.3
D 12 233 299425 1665.99 757 740 179.3

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