ASTROSAT CZTI

Data Quality Report

Orbit 09627

Creation date: 2024-06-27T15:48:37.528010
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/AS1A03_033T01_9000001368_09627cztM0_level2.evt modeM0/AS1A03_033T01_9000001368_09627cztM0_level2_quad_clean.evt
Size (bytes)497,488,32082,339,200
Size474.4 MB 78.5 MB
Events in quadrant A3,306,543513,865
Events in quadrant B3,495,960514,222
Events in quadrant C3,367,672500,403
Events in quadrant D4,430,268486,385

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141903
B0147172
C0146212
D0176432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68641662.418415%
B68641702.476690%
C68641652.403846%
D68642984.341492%

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 7869 6865 0 0 0.00% 0.00%
B 7869 6865 2 2 0.03% 0.03%
C 7869 6865 12 12 0.15% 0.17%
D 7869 6865 151 151 1.92% 2.20%

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 3 1 10492 56.01 855 837 172.4
A 0 226 8023 41.69 855 837 172.4
A 12 194 7402 38.09 855 837 172.4
B 0 214 122043 753.94 850 830 160.8
B 0 229 42024 256.23 850 830 160.8
B 12 111 16689 98.64 850 830 160.8
C 4 254 166613 892.13 814 816 185.8
C 9 237 17223 88.28 814 816 185.8
C 13 61 6259 29.29 814 816 185.8
D 1 52 736245 3591.22 818 796 204.8
D 8 195 352421 1717.0 818 796 204.8
D 10 172 46007 220.77 818 796 204.8

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