ASTROSAT CZTI

Data Quality Report

Orbit 17589

Creation date: 2024-06-27T17:38:20.292528
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/AS1A05_056T01_9000002604_17589cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17589cztM0_level2_quad_clean.evt
Size (bytes)487,117,44088,243,200
Size464.6 MB 84.2 MB
Events in quadrant A3,483,483558,882
Events in quadrant B3,362,911562,685
Events in quadrant C3,976,078537,159
Events in quadrant D3,465,430537,055

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146532
B0142342
C0161502
D0148232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68421071.563870%
B68421291.885414%
C68421672.440807%
D6842891.300789%

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 7687 6842 1 1 0.01% 0.01%
B 7687 6843 1 1 0.01% 0.01%
C 7687 6843 0 0 0.00% 0.00%
D 7687 6843 35 35 0.46% 0.51%

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 14 237 192903 1117.3 856 837 171.9
A 0 226 7364 37.97 856 837 171.9
A 3 137 6594 33.49 856 837 171.9
B 4 80 21063 124.18 852 831 162.9
B 12 111 19896 117.02 852 831 162.9
B 11 111 17362 101.46 852 831 162.9
C 3 233 631424 3301.61 818 825 191.0
C 14 238 127509 663.28 818 825 191.0
C 5 218 27625 140.32 818 825 191.0
D 5 222 272507 1326.5 834 807 204.8
D 2 234 21447 100.77 834 807 204.8
D 13 189 15430 71.39 834 807 204.8

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