ASTROSAT CZTI

Data Quality Report

Orbit 23168

Creation date: 2024-06-27T18:50:48.694563
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_148T05_9000003424_23168cztM0_level2.evt modeM0/AS1A07_148T05_9000003424_23168cztM0_level2_quad_clean.evt
Size (bytes)451,163,52072,832,320
Size430.3 MB 69.5 MB
Events in quadrant A3,098,144441,163
Events in quadrant B3,196,913449,965
Events in quadrant C3,375,785431,573
Events in quadrant D3,546,870425,149

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133231
B0135031
C0141941
D0147121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6563140.213317%
B6564350.533211%
C6564791.203534%
D6564741.127361%

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 7413 6564 0 0 0.00% 0.00%
B 7414 6565 5 5 0.07% 0.08%
C 7414 6565 10 10 0.13% 0.15%
D 7414 6565 51 51 0.69% 0.78%

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 9109 50.76 802 786 164.0
A 3 137 7004 37.92 802 786 164.0
A 0 226 6917 37.39 802 786 164.0
B 0 190 26060 164.61 798 777 153.6
B 12 111 19027 118.82 798 777 153.6
B 5 172 18097 112.76 798 777 153.6
C 0 10 222159 1223.25 770 775 181.0
C 14 238 122122 670.5 770 775 181.0
C 9 15 26541 142.37 770 775 181.0
D 7 238 340951 1781.7 781 759 190.9
D 12 233 81218 421.39 781 759 190.9
D 1 239 41052 211.03 781 759 190.9

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