ASTROSAT CZTI

Data Quality Report

Orbit 06412

Creation date: 2024-06-27T15:06:52.726265
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/AS1C02_011T01_9000000850_06412cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06412cztM0_level2_quad_clean.evt
Size (bytes)443,586,24072,846,720
Size423.0 MB 69.5 MB
Events in quadrant A3,278,753441,138
Events in quadrant B3,359,949452,049
Events in quadrant C3,129,896445,803
Events in quadrant D3,237,225427,028

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134573
B0137492
C0131942
D0135392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6300590.936508%
B6300931.476190%
C6300290.460317%
D6300510.809524%

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 7615 6301 0 0 0.00% 0.00%
B 7615 6301 12 12 0.16% 0.19%
C 7615 6301 0 0 0.00% 0.00%
D 7615 6301 7 7 0.09% 0.11%

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 15 236 47501 280.22 823 807 166.6
A 15 174 42902 252.62 823 807 166.6
A 8 15 12417 69.67 823 807 166.6
B 15 204 36218 224.16 831 815 157.9
B 0 229 32969 203.59 831 815 157.9
B 0 219 29499 181.62 831 815 157.9
C 1 16 19112 99.34 797 804 184.3
C 13 61 6410 30.42 797 804 184.3
C 8 222 2396 8.64 797 804 184.3
D 11 241 73089 373.62 795 771 193.6
D 2 152 57989 295.61 795 771 193.6
D 2 136 47314 240.46 795 771 193.6

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