ASTROSAT CZTI

Data Quality Report

Orbit 20200304_A07_065T01_9000003554_level2

Creation date: 2020-03-06T15:56:40.362941
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1A07_065T01_9000003554cztM0_level2_bc.evt modeM0/AS1A07_065T01_9000003554cztM0_level2_quad_clean.evt
Size (bytes)2,360,047,680588,306,240
Size2.2 GB 561.1 MB
Events in quadrant A10,388,4303,869,762
Events in quadrant B14,530,3443,885,807
Events in quadrant C10,543,3353,707,725
Events in quadrant D32,565,2112,886,630

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01043790
B01173820
C01061750
D02211720

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010280
B010280
C010280
D010280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A504824080.808209%
B5048217133.393289%
C504829321.846203%
D504821580031.298285%

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 56697 50483 0 0 0.00% 0.00%
B 56697 50482 257 257 0.45% 0.51%
C 56697 50485 7 7 0.01% 0.01%
D 56697 49976 1068 1068 1.88% 2.14%

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 74554 124.51 2677 2625 577.7
A 2 79 41310 66.96 2677 2625 577.7
A 0 226 17231 25.28 2677 2625 577.7
B 4 200 3563757 7017.35 2683 2621 507.5
B 0 197 459394 900.09 2683 2621 507.5
B 0 190 70656 134.07 2683 2621 507.5
C 0 10 674029 1111.69 2556 2544 604.0
C 7 247 20443 29.63 2556 2544 604.0
C 5 37 14738 20.19 2556 2544 604.0
D 12 218 18633686 37205.64 2128 2053 500.8
D 7 238 1691301 3373.27 2128 2053 500.8
D 1 52 1322966 2637.74 2128 2053 500.8

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