ASTROSAT CZTI

Data Quality Report

Orbit 22302

Creation date: 2024-06-27T18:39:12.498346
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/AS1A07_049T01_9000003298_22302cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22302cztM0_level2_quad_clean.evt
Size (bytes)435,208,32094,412,160
Size415.0 MB 90.0 MB
Events in quadrant A3,068,044612,560
Events in quadrant B3,156,160630,701
Events in quadrant C3,169,489593,240
Events in quadrant D3,343,967568,775

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133632
B0135402
C0135222
D0144072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6509200.307267%
B6509230.353357%
C6509560.860347%
D6509901.382701%

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 7614 6510 0 0 0.00% 0.00%
B 7614 6510 0 0 0.00% 0.00%
C 7614 6510 0 0 0.00% 0.00%
D 7614 6510 55 55 0.72% 0.84%

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 8619 49.07 796 780 159.8
A 3 137 7034 39.15 796 780 159.8
A 0 226 6714 37.15 796 780 159.8
B 12 111 18188 114.62 799 779 151.9
B 11 111 16138 101.12 799 779 151.9
B 14 111 14126 87.87 799 779 151.9
C 14 238 121739 670.61 771 775 180.4
C 10 1 31282 169.13 771 775 180.4
C 3 9 6040 29.19 771 775 180.4
D 1 52 314400 1673.78 771 748 187.4
D 2 136 49813 261.83 771 748 187.4
D 7 223 34179 178.4 771 748 187.4

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