ASTROSAT CZTI

Data Quality Report

Orbit 11810

Creation date: 2024-06-27T16:18:35.715554
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/AS1A04_022T04_9000001746_11810cztM0_level2.evt modeM0/AS1A04_022T04_9000001746_11810cztM0_level2_quad_clean.evt
Size (bytes)480,412,80086,296,320
Size458.2 MB 82.3 MB
Events in quadrant A3,204,892552,509
Events in quadrant B4,497,146548,786
Events in quadrant C2,958,663561,937
Events in quadrant D3,468,266517,692

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134703
B0174152
C0127682
D0145512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6193290.468271%
B61933235.215566%
C619370.113031%
D6193751.211045%

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 7554 6195 0 0 0.00% 0.00%
B 7554 6194 159 159 2.10% 2.57%
C 7554 6195 0 0 0.00% 0.00%
D 7554 6195 46 46 0.61% 0.74%

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 1 162 105928 682.79 763 750 154.0
A 1 178 53761 344.14 763 750 154.0
A 1 161 47336 302.43 763 750 154.0
B 4 239 875628 6149.53 763 745 142.3
B 15 185 315948 2215.55 763 745 142.3
B 10 16 163698 1145.39 763 745 142.3
C 13 61 5502 27.08 755 760 175.1
C 1 16 5420 26.61 755 760 175.1
C 14 234 5084 24.69 755 760 175.1
D 1 52 238866 1350.91 735 716 176.3
D 13 104 80039 449.96 735 716 176.3
D 10 199 77829 437.42 735 716 176.3

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