ASTROSAT CZTI

Data Quality Report

Orbit 37048

Creation date: 2024-06-27T21:34:36.422190
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_046T02_9000005274_37048cztM0_level2.evt modeM0/AS1A11_046T02_9000005274_37048cztM0_level2_quad_clean.evt
Size (bytes)498,058,56058,406,400
Size475.0 MB 55.7 MB
Events in quadrant A2,542,585360,799
Events in quadrant B2,990,114363,401
Events in quadrant C2,976,685360,952
Events in quadrant D6,220,292317,262

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110542
B0125991
C0122591
D0221191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A521470.134254%
B52141522.915228%
C5214420.805524%
D5214114221.902570%

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 6525 5215 0 0 0.00% 0.00%
B 6525 5215 94 94 1.44% 1.80%
C 6525 5215 32 32 0.49% 0.61%
D 6525 5215 987 987 15.13% 18.93%

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 10 83 192051 1603.33 586 574 119.4
A 11 254 66590 552.78 586 574 119.4
A 13 6 7966 61.9 586 574 119.4
B 5 172 318014 2856.74 577 561 111.1
B 0 229 148083 1327.54 577 561 111.1
B 5 184 97561 872.9 577 561 111.1
C 14 254 310736 2346.07 568 570 132.2
C 15 214 215689 1627.14 568 570 132.2
C 0 10 143344 1079.93 568 570 132.2
D 12 17 3044236 24098.71 516 501 126.3
D 1 52 613683 4854.86 516 501 126.3
D 2 250 189188 1493.93 516 501 126.3

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