ASTROSAT CZTI

Data Quality Report

Orbit 22029

Creation date: 2024-06-27T18:35:32.315918
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/AS1A07_091T07_9000003254_22029cztM0_level2.evt modeM0/AS1A07_091T07_9000003254_22029cztM0_level2_quad_clean.evt
Size (bytes)466,871,04091,483,200
Size445.2 MB 87.2 MB
Events in quadrant A3,142,095605,464
Events in quadrant B3,277,420604,484
Events in quadrant C3,100,649579,434
Events in quadrant D4,208,213558,493

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129641
B0133791
C0127321
D0163661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6053570.941682%
B6053941.552949%
C6053701.156451%
D60533595.930943%

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 7343 6053 0 0 0.00% 0.00%
B 7343 6053 33 33 0.45% 0.55%
C 7343 6053 0 0 0.00% 0.00%
D 7343 6053 321 321 4.37% 5.30%

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 15 236 13075 75.84 812 798 161.9
A 13 254 9785 55.51 812 798 161.9
A 0 226 7099 38.92 812 798 161.9
B 3 64 136074 920.06 791 772 147.1
B 0 230 41342 275.88 791 772 147.1
B 12 111 16796 108.96 791 772 147.1
C 14 238 122029 691.96 763 769 175.2
C 13 61 5316 25.95 763 769 175.2
C 3 202 1892 6.41 763 769 175.2
D 1 52 767259 4222.39 760 739 181.5
D 11 176 253467 1392.16 760 739 181.5
D 5 222 187768 1030.25 760 739 181.5

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