ASTROSAT CZTI

Data Quality Report

Orbit 30118

Creation date: 2024-06-27T20:11:08.166263
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/AS1A10_097T01_9000004334_30118cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30118cztM0_level2_quad_clean.evt
Size (bytes)513,383,040114,298,560
Size489.6 MB 109.0 MB
Events in quadrant A3,149,208765,891
Events in quadrant B5,113,601767,543
Events in quadrant C3,521,597739,067
Events in quadrant D3,317,774731,064

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135692
B0198792
C0146032
D0142852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6571450.684827%
B6571811.232689%
C65701732.633181%
D6570610.928463%

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 7626 6572 3 3 0.04% 0.05%
B 7626 6572 4 4 0.05% 0.06%
C 7625 6571 0 0 0.00% 0.00%
D 7625 6571 28 28 0.37% 0.43%

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 8 192 28232 170.24 807 790 161.2
A 13 254 11940 69.17 807 790 161.2
A 3 137 8099 45.34 807 790 161.2
B 6 159 1918930 12504.43 803 784 153.4
B 0 190 20669 129.63 803 784 153.4
B 12 111 18889 118.03 803 784 153.4
C 3 233 212436 1166.81 777 783 181.4
C 14 238 157982 866.61 777 783 181.4
C 15 208 62638 340.99 777 783 181.4
D 2 250 101123 501.68 780 764 200.0
D 1 52 77321 382.7 780 764 200.0
D 8 195 63512 313.67 780 764 200.0

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