ASTROSAT CZTI

Data Quality Report

Orbit 09629

Creation date: 2024-06-27T15:48:39.353839
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_033T01_9000001368_09629cztM0_level2.evt modeM0/AS1A03_033T01_9000001368_09629cztM0_level2_quad_clean.evt
Size (bytes)338,716,80050,195,520
Size323.0 MB 47.9 MB
Events in quadrant A1,937,386318,438
Events in quadrant B1,966,390317,327
Events in quadrant C1,799,060305,889
Events in quadrant D4,270,764284,278

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0842
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0869072
B0876346
C0851782
D016018382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4173501.198179%
B4186441.051123%
C4167250.599952%
D414486820.945946%

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 4207 4206 2 2 0.05% 0.05%
B 4207 4206 1 1 0.02% 0.02%
C 4207 4206 0 0 0.00% 0.00%
D 4207 4176 757 757 17.99% 18.13%

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 1 162 47820 489.45 474 464 96.8
A 1 178 14131 141.26 474 464 96.8
A 1 161 13426 133.97 474 464 96.8
B 0 229 27625 295.37 477 465 92.0
B 0 214 24001 255.95 477 465 92.0
B 0 219 17227 182.29 477 465 92.0
C 13 61 3446 27.77 459 461 107.5
C 14 239 2659 20.45 459 461 107.5
C 12 4 2574 19.66 459 461 107.5
D 1 52 2312068 21945.7 389 380 105.3
D 13 137 219829 2083.31 389 380 105.3
D 7 71 119480 1130.66 389 380 105.3

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