ASTROSAT CZTI

Data Quality Report

Orbit 11448

Creation date: 2024-06-27T16:12:53.982425
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/AS1A04_021T02_9000001676_11448cztM0_level2.evt modeM0/AS1A04_021T02_9000001676_11448cztM0_level2_quad_clean.evt
Size (bytes)538,940,160110,551,680
Size514.0 MB 105.4 MB
Events in quadrant A3,682,240724,817
Events in quadrant B4,975,364706,824
Events in quadrant C3,281,427756,054
Events in quadrant D3,939,997704,880

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152293
B0192702
C0137462
D0158212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65341061.622283%
B65344857.422712%
C6534781.193756%
D65341502.295684%

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 7795 6536 1 1 0.01% 0.02%
B 7795 6536 227 227 2.91% 3.47%
C 7795 6536 0 0 0.00% 0.00%
D 7795 6536 37 37 0.47% 0.57%

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 1 162 124511 709.49 866 849 174.3
A 1 178 72573 411.5 866 849 174.3
A 1 161 60925 344.67 866 849 174.3
B 4 239 1297209 8279.38 836 816 156.6
B 11 51 197581 1256.63 836 816 156.6
B 15 204 123219 781.72 836 816 156.6
C 13 61 6266 27.95 842 851 193.7
C 3 202 2190 6.91 842 851 193.7
C -1 -1 -1 -1.0 842 851 193.7
D 8 195 154604 776.87 841 820 198.0
D 1 52 139846 702.31 841 820 198.0
D 13 249 85913 429.86 841 820 198.0

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