ASTROSAT CZTI

Data Quality Report

Orbit 30653

Creation date: 2024-06-27T20:18:11.588182
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/AS1C05_007T01_9000004418_30653cztM0_level2.evt modeM0/AS1C05_007T01_9000004418_30653cztM0_level2_quad_clean.evt
Size (bytes)659,424,96079,499,520
Size628.9 MB 75.8 MB
Events in quadrant A3,074,188515,570
Events in quadrant B4,919,252512,752
Events in quadrant C3,240,716486,029
Events in quadrant D8,304,068445,405

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131290
B0192820
C0135500
D0292250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6411350.545937%
B6411600.935891%
C6411831.294650%
D641172311.277492%

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 7386 6412 1 1 0.01% 0.02%
B 7386 6412 2 2 0.03% 0.03%
C 7386 6412 15 15 0.20% 0.23%
D 7386 6412 742 742 10.05% 11.57%

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 13 254 12434 72.81 791 774 160.1
A 0 13 11218 65.22 791 774 160.1
A 8 192 8513 48.33 791 774 160.1
B 6 159 1813626 12055.45 782 763 150.4
B 12 111 18623 118.77 782 763 150.4
B 11 111 17114 108.73 782 763 150.4
C 14 238 121223 684.13 749 754 176.1
C 3 233 112778 636.17 749 754 176.1
C 0 10 57047 319.68 749 754 176.1
D 8 195 4941766 25753.05 728 715 191.9
D 12 227 389538 2026.57 728 715 191.9
D 13 249 70066 361.46 728 715 191.9

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