ASTROSAT CZTI

Data Quality Report

Orbit 34030

Creation date: 2024-06-27T20:55:36.838260
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/AS1A06_003T04_9000004866_34030cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34030cztM0_level2_quad_clean.evt
Size (bytes)503,686,08056,335,680
Size480.4 MB 53.7 MB
Events in quadrant A2,831,604344,821
Events in quadrant B3,476,903340,896
Events in quadrant C4,498,870337,582
Events in quadrant D4,096,053319,175

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114333
B0138142
C0170152
D0159092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5178140.270375%
B51781693.263808%
C51784749.154114%
D51782234.306682%

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 7151 5179 5 5 0.07% 0.10%
B 7151 5178 131 131 1.83% 2.53%
C 7150 5178 394 394 5.51% 7.61%
D 7151 5179 169 169 2.36% 3.26%

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 0 31 102524 751.65 682 673 135.5
A 15 169 55966 408.06 682 673 135.5
A 10 83 18358 130.51 682 673 135.5
B 5 172 553285 4370.13 673 658 126.5
B 0 189 106783 839.22 673 658 126.5
B 0 219 99205 779.3 673 658 126.5
C 4 254 1242926 8653.79 628 633 143.6
C 0 10 307237 2135.8 628 633 143.6
C 15 214 233155 1619.74 628 633 143.6
D 8 195 488304 3080.45 645 625 158.3
D 10 118 467765 2950.71 645 625 158.3
D 2 249 365557 2305.11 645 625 158.3

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