ASTROSAT CZTI

Data Quality Report

Orbit 12099

Creation date: 2024-06-27T16:22:23.217866
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/AS1G08_065T01_9000001796_12099cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12099cztM0_level2_quad_clean.evt
Size (bytes)535,504,32069,762,240
Size510.7 MB 66.5 MB
Events in quadrant A3,545,324431,491
Events in quadrant B4,321,372412,173
Events in quadrant C3,265,240421,256
Events in quadrant D4,655,833404,615

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148003
B0171182
C0137462
D0182772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63461312.064292%
B63463605.672865%
C6346891.402458%
D63462393.766152%

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 7622 6347 7 7 0.09% 0.11%
B 7622 6347 161 161 2.11% 2.54%
C 7622 6347 0 0 0.00% 0.00%
D 7622 6347 116 116 1.52% 1.83%

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 1 162 67806 391.84 861 845 170.9
A 14 63 31820 181.26 861 845 170.9
A 1 178 27530 156.15 861 845 170.9
B 4 239 698467 4485.45 840 821 155.5
B 11 51 137038 875.79 840 821 155.5
B 15 204 118110 754.1 840 821 155.5
C 14 67 11449 56.25 833 838 188.6
C 13 61 6236 28.62 833 838 188.6
C 15 208 2945 11.17 833 838 188.6
D 1 52 652838 3317.72 828 807 196.5
D 8 195 410334 2083.79 828 807 196.5
D 14 34 140591 711.26 828 807 196.5

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