ASTROSAT CZTI

Data Quality Report

Orbit 30248

Creation date: 2024-06-27T20:12:39.800872
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/AS1A10_007T01_9000004350_30248cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30248cztM0_level2_quad_clean.evt
Size (bytes)508,429,44087,681,600
Size484.9 MB 83.6 MB
Events in quadrant A3,161,621555,833
Events in quadrant B5,193,758556,201
Events in quadrant C3,315,671549,221
Events in quadrant D3,286,356540,941

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135392
B0200032
C0138072
D0139392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6488440.678175%
B64881452.234895%
C64881121.726264%
D6487210.323724%

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 7533 6489 5 5 0.07% 0.08%
B 7533 6489 39 39 0.52% 0.60%
C 7533 6489 0 0 0.00% 0.00%
D 7532 6488 1 1 0.01% 0.02%

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 8 192 27544 164.07 812 796 163.0
A 13 254 12423 71.32 812 796 163.0
A 3 137 8442 46.9 812 796 163.0
B 6 159 1858305 11965.3 806 785 155.2
B 6 36 114723 733.94 806 785 155.2
B 4 80 26947 168.52 806 785 155.2
C 14 238 154901 833.89 787 792 184.8
C 14 254 41180 218.54 787 792 184.8
C 3 233 40503 214.88 787 792 184.8
D 8 195 242598 1229.19 789 771 196.7
D 2 234 30239 149.78 789 771 196.7
D 2 250 12116 57.67 789 771 196.7

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