ASTROSAT CZTI

Data Quality Report

Orbit 09350

Creation date: 2024-06-27T15:44:47.920049
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/AS1G07_022T01_9000001322_09350cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09350cztM0_level2_quad_clean.evt
Size (bytes)426,551,04083,744,640
Size406.8 MB 79.9 MB
Events in quadrant A4,140,101519,966
Events in quadrant B2,866,266560,577
Events in quadrant C2,562,466537,058
Events in quadrant D2,966,335524,783

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179381899
B013101943
C012453864
D013536988

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01244
B01239
C01246
D012414

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0162
C0161
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55172374.295813%
B5642420.744417%
C5660100.176678%
D5652350.619250%

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 7393 5928 99 99 1.34% 1.67%
B 7394 5988 6 6 0.08% 0.10%
C 7394 5996 0 0 0.00% 0.00%
D 7394 5998 31 31 0.42% 0.52%

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 8 5 852107 6348.5 659 645 134.1
A 0 8 541819 4034.99 659 645 134.1
A 1 162 99441 736.62 659 645 134.1
B 4 80 71478 544.4 690 676 130.1
B 10 245 33890 255.38 690 676 130.1
B 0 219 29758 223.61 690 676 130.1
C 13 61 5073 29.3 654 655 150.8
C 8 222 4778 27.34 654 655 150.8
C 10 22 4387 24.75 654 655 150.8
D 12 233 224424 1296.22 650 634 172.6
D 8 195 66201 379.77 650 634 172.6
D 7 71 54416 311.51 650 634 172.6

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