ASTROSAT CZTI

Data Quality Report

Orbit 14763

Creation date: 2024-06-27T16:59:24.126672
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_022T06_9000002182_14763cztM0_level2.evt modeM0/AS1A04_022T06_9000002182_14763cztM0_level2_quad_clean.evt
Size (bytes)497,880,00079,142,400
Size474.8 MB 75.5 MB
Events in quadrant A3,352,281503,186
Events in quadrant B3,401,041499,980
Events in quadrant C4,117,212479,143
Events in quadrant D3,782,848476,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136252
B0137851
C0162721
D0150881

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6263550.878173%
B6263540.862207%
C62631672.666454%
D62631171.868114%

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 7624 6265 0 0 0.00% 0.00%
B 7624 6265 2 2 0.03% 0.03%
C 7624 6265 116 116 1.52% 1.85%
D 7624 6265 73 73 0.96% 1.17%

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 60588 351.85 848 834 169.8
A 14 237 23086 131.03 848 834 169.8
A 0 226 7731 40.61 848 834 169.8
B 4 142 43410 277.63 831 814 153.4
B 0 229 32542 206.8 831 814 153.4
B 0 214 23956 150.84 831 814 153.4
C 4 254 513127 2864.76 796 803 178.8
C 3 233 452654 2526.61 796 803 178.8
C 0 207 29073 158.08 796 803 178.8
D 5 222 572808 2805.55 812 793 203.9
D 2 120 34846 167.02 812 793 203.9
D 2 234 30874 147.54 812 793 203.9

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