ASTROSAT CZTI

Data Quality Report

Orbit 46097

Creation date: 2024-06-27T23:19:11.775940
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/AS1A13_077T01_9000006168_46097cztM0_level2.fits modeM0/AS1A13_077T01_9000006168_46097cztM0_level2_quad_clean.evt
Size (bytes)243,383,04043,922,880
Size232.1 MB 41.9 MB
Events in quadrant A2,589,870299,174
Events in quadrant B1,385,644322,296
Events in quadrant C1,286,092307,534
Events in quadrant D3,542,836213,542

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094511
B057131
C055211
D0123611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26111706.510915%
B2612501.914242%
C2612321.225115%
D261273027.947933%

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 3811 2612 32 32 0.84% 1.23%
B 3812 2613 6 6 0.16% 0.23%
C 3812 2613 0 0 0.00% 0.00%
D 3812 2613 576 576 15.11% 22.04%

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 10 83 1267695 18505.73 324 317 68.5
A 9 191 40714 589.86 324 317 68.5
A 7 3 22783 328.04 324 317 68.5
B 0 190 38282 572.39 326 317 66.3
B 5 172 21671 321.95 326 317 66.3
B 3 112 14399 212.31 326 317 66.3
C 14 254 17600 222.37 324 326 77.7
C 3 233 5253 63.43 324 326 77.7
C 13 61 2211 24.27 324 326 77.7
D 2 37 2202488 29846.49 289 280 73.8
D 1 52 117685 1591.19 289 280 73.8
D 13 171 31799 427.18 289 280 73.8

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