ASTROSAT CZTI

Data Quality Report

Orbit 08400

Creation date: 2024-06-27T15:32:20.444392
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/AS1C02_033T01_9000001178_08400cztM0_level2.evt modeM0/AS1C02_033T01_9000001178_08400cztM0_level2_quad_clean.evt
Size (bytes)503,723,52095,880,960
Size480.4 MB 91.4 MB
Events in quadrant A3,606,806601,854
Events in quadrant B4,027,232615,075
Events in quadrant C3,370,766608,335
Events in quadrant D3,754,915570,370

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158204
B0167942
C0151422
D0164332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72931852.536679%
B72931722.358426%
C7293761.042095%
D72931472.015631%

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 7434 7297 37 37 0.50% 0.51%
B 7434 7297 15 15 0.20% 0.21%
C 7434 7297 4 4 0.05% 0.05%
D 7434 7295 103 103 1.39% 1.41%

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 5 16 217606 1221.15 870 850 177.5
A 14 111 21639 117.12 870 850 177.5
A 0 254 17070 91.38 870 850 177.5
B 0 219 233092 1352.13 879 856 171.8
B 0 231 103653 598.51 879 856 171.8
B 0 214 91017 524.94 879 856 171.8
C 1 16 29657 144.12 851 855 199.9
C 8 128 11136 51.44 851 855 199.9
C 13 61 6708 29.29 851 855 199.9
D 1 7 221529 1078.35 834 807 204.7
D 7 71 148648 722.29 834 807 204.7
D 2 14 62594 301.86 834 807 204.7

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