ASTROSAT CZTI

Data Quality Report

Orbit 12343

Creation date: 2024-06-27T16:25:46.907467
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_130T01_9000001822_12343cztM0_level2.evt modeM0/AS1A04_130T01_9000001822_12343cztM0_level2_quad_clean.evt
Size (bytes)566,478,72076,512,960
Size540.2 MB 73.0 MB
Events in quadrant A4,446,271469,140
Events in quadrant B3,510,878474,349
Events in quadrant C3,134,181471,232
Events in quadrant D5,606,787431,122

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177863
B0148262
C0138312
D0212862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67591161.716230%
B6759981.449919%
C6759200.295902%
D67596649.823938%

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 8825 6762 20 20 0.23% 0.30%
B 8825 6762 43 43 0.49% 0.64%
C 8825 6762 0 0 0.00% 0.00%
D 8825 6762 547 547 6.20% 8.09%

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 15 493887 2964.93 810 794 166.3
A 13 251 322354 1933.52 810 794 166.3
A 1 162 205317 1229.78 810 794 166.3
B 4 239 189129 1196.84 816 797 157.4
B 3 64 45972 287.08 816 797 157.4
B 0 219 34379 213.41 816 797 157.4
C 4 112 24512 128.46 793 797 184.6
C 15 208 11713 59.13 793 797 184.6
C 13 61 5858 27.41 793 797 184.6
D 1 52 2366658 13019.67 755 735 181.7
D 5 222 106388 581.41 755 735 181.7
D 13 249 54280 294.66 755 735 181.7

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