ASTROSAT CZTI

Data Quality Report

Orbit 11534

Creation date: 2024-06-27T16:14:22.444799
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_022T05_9000001690_11534cztM0_level2.evt modeM0/AS1A04_022T05_9000001690_11534cztM0_level2_quad_clean.evt
Size (bytes)563,256,00075,879,360
Size537.2 MB 72.4 MB
Events in quadrant A5,249,933452,221
Events in quadrant B3,987,012465,292
Events in quadrant C3,060,101486,833
Events in quadrant D4,333,442452,423

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198273
B0157162
C0130962
D0171762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63145348.457396%
B63142123.357618%
C6314310.490972%
D63142073.278429%

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 7545 6316 323 323 4.28% 5.11%
B 7545 6316 98 98 1.30% 1.55%
C 7545 6316 1 1 0.01% 0.02%
D 7545 6316 152 152 2.01% 2.41%

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 2080240 13045.49 789 774 159.4
A 1 162 38478 236.54 789 774 159.4
A 9 143 24059 146.08 789 774 159.4
B 4 239 672427 4444.12 803 784 151.1
B 15 204 133994 881.42 803 784 151.1
B 0 214 19825 125.99 803 784 151.1
C 13 61 5678 27.06 783 789 180.7
C 14 234 3901 17.23 783 789 180.7
C 7 159 3524 15.14 783 789 180.7
D 1 52 559586 3038.97 774 754 183.9
D 5 222 403845 2192.04 774 754 183.9
D 13 122 183450 993.51 774 754 183.9

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