ASTROSAT CZTI

Data Quality Report

Orbit 17209

Creation date: 2024-06-27T17:33:36.143769
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_185T04_9000002548_17209cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17209cztM0_level2_quad_clean.evt
Size (bytes)462,692,16096,549,120
Size441.3 MB 92.1 MB
Events in quadrant A3,167,659642,183
Events in quadrant B3,265,642641,744
Events in quadrant C3,633,725603,690
Events in quadrant D3,515,712594,643

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134562
B0137302
C0147032
D0148113

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6324540.853890%
B6325520.822134%
C6325871.375494%
D63241201.897533%

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 7609 6325 0 0 0.00% 0.00%
B 7610 6326 1 1 0.01% 0.02%
C 7610 6326 0 0 0.00% 0.00%
D 7609 6325 53 53 0.70% 0.84%

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 12 189 32319 192.23 816 801 164.0
A 0 226 7308 39.69 816 801 164.0
A 12 194 6207 32.97 816 801 164.0
B 0 197 39712 255.06 814 796 152.6
B 12 111 17153 107.2 814 796 152.6
B 11 111 14553 90.16 814 796 152.6
C 3 233 471149 2610.63 779 785 180.2
C 14 238 121430 669.61 779 785 180.2
C 13 61 5475 26.03 779 785 180.2
D 5 222 331104 1700.97 794 771 194.2
D 12 233 135254 692.49 794 771 194.2
D 2 234 25933 129.57 794 771 194.2

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