ASTROSAT CZTI

Data Quality Report

Orbit 08609

Creation date: 2024-06-27T15:34:55.414237
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_036T01_9000001204_08609cztM0_level2.evt modeM0/AS1A03_036T01_9000001204_08609cztM0_level2_quad_clean.evt
Size (bytes)428,607,36092,975,040
Size408.8 MB 88.7 MB
Events in quadrant A2,886,313599,338
Events in quadrant B3,609,399616,011
Events in quadrant C2,801,998604,968
Events in quadrant D3,261,719563,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128993
B0147902
C0126212
D0141252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6181410.663323%
B61811873.025400%
C6181170.275036%
D6181911.472254%

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 7466 6182 18 18 0.24% 0.29%
B 7466 6182 121 121 1.62% 1.96%
C 7466 6182 0 0 0.00% 0.00%
D 7466 6182 63 63 0.84% 1.02%

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 15 174 55216 374.62 722 707 145.5
A 13 248 27099 181.38 722 707 145.5
A 5 16 22805 151.87 722 707 145.5
B 10 16 448330 3264.94 733 715 137.1
B 10 246 106260 769.85 733 715 137.1
B 0 214 77406 559.39 733 715 137.1
C 13 61 5504 29.14 715 720 164.2
C 8 128 4455 22.75 715 720 164.2
C 8 222 3594 17.51 715 720 164.2
D 2 136 241183 1418.01 699 680 169.6
D 7 71 106528 624.08 699 680 169.6
D 10 253 96508 565.0 699 680 169.6

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