ASTROSAT CZTI

Data Quality Report

Orbit 11378

Creation date: 2024-06-27T16:12:04.456108
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_022T02_9000001662_11378cztM0_level2.evt modeM0/AS1A04_022T02_9000001662_11378cztM0_level2_quad_clean.evt
Size (bytes)549,780,48090,532,800
Size524.3 MB 86.3 MB
Events in quadrant A4,624,488558,303
Events in quadrant B4,377,624556,114
Events in quadrant C3,054,231618,452
Events in quadrant D4,159,779561,519

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180853
B0172522
C0133182
D0166942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64052333.637783%
B64054356.791569%
C6405500.780640%
D64052944.590164%

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 7536 6407 119 119 1.58% 1.86%
B 7536 6407 224 224 2.97% 3.50%
C 7536 6407 0 0 0.00% 0.00%
D 7536 6407 207 207 2.75% 3.23%

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 15 174 1015276 6506.32 769 752 155.9
A 8 5 614247 3934.45 769 752 155.9
A 1 162 8754 51.32 769 752 155.9
B 4 239 1179409 8235.69 761 743 143.1
B 3 64 126256 877.0 761 743 143.1
B 0 229 21740 146.71 761 743 143.1
C 13 61 5622 26.38 782 789 183.2
C 14 234 3227 13.31 782 789 183.2
C 3 202 1972 6.46 782 789 183.2
D 10 253 576440 2915.85 746 734 197.4
D 1 52 191143 964.39 746 734 197.4
D 14 34 163857 826.19 746 734 197.4

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