ASTROSAT CZTI

Data Quality Report

Orbit 12261

Creation date: 2024-06-27T16:24:38.731315
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_064T01_9000001814_12261cztM0_level2.evt modeM0/AS1G08_064T01_9000001814_12261cztM0_level2_quad_clean.evt
Size (bytes)173,761,92012,715,200
Size165.7 MB 12.1 MB
Events in quadrant A2,168,31464,304
Events in quadrant B1,112,52167,791
Events in quadrant C821,68768,715
Events in quadrant D1,046,52863,126

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075872
B044061
C034091
D041401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A163745227.611484%
B1637674.092853%
C1637110.671961%
D1637543.298717%

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 1638 1638 294 294 17.95% 17.95%
B 1638 1638 23 23 1.40% 1.40%
C 1638 1638 0 0 0.00% 0.00%
D 1638 1638 36 36 2.20% 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 8 15 858933 20300.22 199 195 42.3
A 14 237 324658 7670.17 199 195 42.3
A 13 251 108701 2565.04 199 195 42.3
B 4 239 115681 2733.31 212 207 42.2
B 4 206 72904 1720.76 212 207 42.2
B 3 64 34226 805.24 212 207 42.2
C 4 175 8280 164.52 207 208 49.1
C 0 207 1860 33.67 207 208 49.1
C 13 61 1606 28.49 207 208 49.1
D 1 52 187048 3632.68 207 201 51.4
D 10 199 32149 621.13 207 201 51.4
D 7 71 8826 167.69 207 201 51.4

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