ASTROSAT CZTI

Data Quality Report

Orbit 13389

Creation date: 2024-06-27T16:40:03.602357
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/AS1A04_103T01_9000001988_13389cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13389cztM0_level2_quad_clean.evt
Size (bytes)492,336,00099,901,440
Size469.5 MB 95.3 MB
Events in quadrant A3,262,566659,033
Events in quadrant B3,386,120678,956
Events in quadrant C3,299,472648,237
Events in quadrant D4,534,805599,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137523
B0140332
C0137112
D0176982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63041071.697335%
B63041211.919416%
C6304751.189721%
D63043916.202411%

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 8970 6307 0 0 0.00% 0.00%
B 8970 6307 1 1 0.01% 0.02%
C 8970 6307 2 2 0.02% 0.03%
D 8970 6307 329 329 3.67% 5.22%

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 9 143 31012 181.2 832 816 166.6
A 1 162 11683 65.21 832 816 166.6
A 8 15 10607 58.75 832 816 166.6
B 3 209 25302 157.02 837 817 155.9
B 10 245 24091 149.26 837 817 155.9
B 3 64 19598 120.44 837 817 155.9
C 14 220 95798 516.54 801 807 183.9
C 3 233 78314 421.46 801 807 183.9
C 13 61 5818 27.25 801 807 183.9
D 1 52 1519452 8189.26 776 755 185.4
D 2 234 21534 112.04 776 755 185.4
D 13 172 18679 96.65 776 755 185.4

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