ASTROSAT CZTI

Data Quality Report

Orbit 29053

Creation date: 2024-06-27T19:59:42.842419
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/AS1C05_019T04_9000004162_29053cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29053cztM0_level2_quad_clean.evt
Size (bytes)523,157,760123,488,640
Size498.9 MB 117.8 MB
Events in quadrant A3,137,442830,670
Events in quadrant B3,290,329859,750
Events in quadrant C3,287,530837,800
Events in quadrant D5,694,384765,113

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135252
B0138802
C0137812
D0213822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6404450.702686%
B6404620.968145%
C64041071.670831%
D64044797.479700%

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 7584 6404 0 0 0.00% 0.00%
B 7584 6404 17 17 0.22% 0.27%
C 7584 6404 0 0 0.00% 0.00%
D 7584 6404 334 334 4.40% 5.22%

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 64620 409.94 787 773 155.7
A 6 16 31290 195.94 787 773 155.7
A 13 254 11629 69.7 787 773 155.7
B 10 245 71818 482.65 790 770 147.2
B 10 246 65436 439.29 790 770 147.2
B 15 33 29216 193.24 790 770 147.2
C 14 238 125486 697.37 774 779 178.8
C 3 233 121155 673.15 774 779 178.8
C 2 114 15027 79.68 774 779 178.8
D 1 52 2208463 12423.46 747 727 177.7
D 8 195 571257 3210.51 747 727 177.7
D 2 250 67215 374.14 747 727 177.7

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