ASTROSAT CZTI

Data Quality Report

Orbit 23605

Creation date: 2024-06-27T18:56:42.879815
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/AS1T03_178T01_9000003488_23605cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23605cztM0_level2_quad_clean.evt
Size (bytes)452,471,04092,661,120
Size431.5 MB 88.4 MB
Events in quadrant A3,102,122594,938
Events in quadrant B3,345,494616,487
Events in quadrant C3,185,199581,606
Events in quadrant D3,623,874555,062

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135122
B0140952
C0135802
D0152552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6567140.213187%
B6567380.578651%
C6567370.563423%
D6567841.279123%

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 7687 6568 0 0 0.00% 0.00%
B 7687 6568 8 8 0.10% 0.12%
C 7687 6567 3 3 0.04% 0.05%
D 7687 6568 85 85 1.11% 1.29%

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 13 254 9617 54.63 804 789 161.6
A 3 137 7254 40.0 804 789 161.6
A 0 226 6867 37.61 804 789 161.6
B 3 64 122099 781.08 811 792 155.3
B 0 189 41619 262.88 811 792 155.3
B 12 111 19230 118.72 811 792 155.3
C 14 238 123931 675.55 774 780 182.3
C 7 247 18435 96.85 774 780 182.3
C 12 2 7247 35.48 774 780 182.3
D 1 52 623590 3323.42 771 749 187.4
D 9 85 49123 258.12 771 749 187.4
D 2 234 26524 137.53 771 749 187.4

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