ASTROSAT CZTI

Data Quality Report

Orbit 04366

Creation date: 2024-06-27T14:40:59.048155
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/AS1G05_252T01_9000000544_04366cztM0_level2.evt modeM0/AS1G05_252T01_9000000544_04366cztM0_level2_quad_clean.evt
Size (bytes)511,035,84062,003,520
Size487.4 MB 59.1 MB
Events in quadrant A4,654,314349,408
Events in quadrant B3,295,900358,139
Events in quadrant C3,394,051348,213
Events in quadrant D3,663,988340,391

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185033
B0143892
C0148782
D0158782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69032543.679560%
B6903711.028538%
C6903701.014052%
D69031271.839780%

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 8683 6903 130 130 1.50% 1.88%
B 8683 6903 4 4 0.05% 0.06%
C 8683 6903 33 33 0.38% 0.48%
D 8683 6903 89 89 1.02% 1.29%

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 13 251 1512215 9157.53 803 785 165.0
A 8 15 19521 113.52 803 785 165.0
A 0 50 18285 106.03 803 785 165.0
B 14 167 69645 432.83 818 799 159.1
B 5 200 26547 161.88 818 799 159.1
B 0 183 19595 118.17 818 799 159.1
C 9 247 307652 1681.57 778 781 182.5
C 10 65 27635 147.15 778 781 182.5
C 14 48 8290 41.15 778 781 182.5
D 4 95 366516 1928.63 773 750 189.7
D 2 136 133804 701.57 773 750 189.7
D 13 223 74277 387.7 773 750 189.7

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