ASTROSAT CZTI

Data Quality Report

Orbit 33493

Creation date: 2024-06-27T20:49:26.325588
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/AS1A11_060T01_9000004804_33493cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33493cztM0_level2_quad_clean.evt
Size (bytes)468,734,40065,672,640
Size447.0 MB 62.6 MB
Events in quadrant A2,466,497424,732
Events in quadrant B4,102,967402,372
Events in quadrant C3,237,513408,067
Events in quadrant D4,029,236382,152

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106953
B0156022
C0130352
D0155902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5296110.207704%
B52965139.686556%
C5296781.472810%
D52961943.663142%

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 7119 5297 0 0 0.00% 0.00%
B 7119 5296 405 405 5.69% 7.65%
C 7119 5297 71 71 1.00% 1.34%
D 7119 5297 176 176 2.47% 3.32%

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 9031 65.54 636 625 128.3
A 3 137 6216 43.59 636 625 128.3
A 10 83 5527 38.22 636 625 128.3
B 5 255 1112635 9366.47 617 602 118.7
B 5 172 531466 4471.38 617 602 118.7
B 12 111 14527 117.29 617 602 118.7
C 15 214 226442 1566.42 620 626 144.2
C 3 233 160312 1107.7 620 626 144.2
C 7 221 139179 961.1 620 626 144.2
D 8 195 828162 5597.71 609 593 147.8
D 13 249 408334 2757.98 609 593 147.8
D 2 250 120793 813.04 609 593 147.8

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