ASTROSAT CZTI

Data Quality Report

Orbit 20432

Creation date: 2024-06-27T18:15:21.394600
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/AS1A05_188T01_9000003018_20432cztM0_level2.evt modeM0/AS1A05_188T01_9000003018_20432cztM0_level2_quad_clean.evt
Size (bytes)461,698,56090,380,160
Size440.3 MB 86.2 MB
Events in quadrant A3,050,248587,273
Events in quadrant B3,116,586586,021
Events in quadrant C3,038,046564,053
Events in quadrant D4,334,922544,935

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132931
B0133881
C0133171
D0174963

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6525580.888889%
B6525550.842912%
C6526630.965369%
D65252764.229885%

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 7345 6525 0 0 0.00% 0.00%
B 7345 6526 0 0 0.00% 0.00%
C 7346 6527 0 0 0.00% 0.00%
D 7345 6525 180 180 2.45% 2.76%

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 16 13940 82.16 788 771 160.3
A 12 194 7636 42.83 788 771 160.3
A 0 226 6802 37.62 788 771 160.3
B 12 111 18306 116.65 776 755 150.5
B 11 111 16345 103.62 776 755 150.5
B 14 111 14445 90.99 776 755 150.5
C 14 238 117843 669.06 745 748 175.0
C 3 247 12980 69.89 745 748 175.0
C 13 61 5319 26.12 745 748 175.0
D 1 52 1033981 5722.08 749 728 180.6
D 15 0 287262 1586.8 749 728 180.6
D 13 153 158395 873.15 749 728 180.6

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