ASTROSAT CZTI

Data Quality Report

Orbit 28592

Creation date: 2024-06-27T19:53:46.006965
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_102T03_9000004106_28592cztM0_level2.evt modeM0/AS1A10_102T03_9000004106_28592cztM0_level2_quad_clean.evt
Size (bytes)590,497,92093,234,240
Size563.1 MB 88.9 MB
Events in quadrant A3,941,316583,044
Events in quadrant B3,811,426589,437
Events in quadrant C3,877,802570,139
Events in quadrant D5,739,126553,917

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164602
B0161462
C0162952
D0222712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75811091.437805%
B75811491.965440%
C75812032.677747%
D75814676.160137%

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 8561 7583 13 13 0.15% 0.17%
B 8561 7583 0 0 0.00% 0.00%
C 8561 7584 8 8 0.09% 0.11%
D 8561 7584 243 243 2.84% 3.20%

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 15 174 125284 639.3 959 938 194.5
A 12 16 83130 422.58 959 938 194.5
A 12 194 21495 105.69 959 938 194.5
B 5 255 30484 159.41 953 928 185.4
B 12 111 22979 118.93 953 928 185.4
B 11 111 20575 105.96 953 928 185.4
C 14 238 146181 671.29 922 926 216.4
C 7 247 62563 284.85 922 926 216.4
C 15 208 30232 135.44 922 926 216.4
D 1 52 1043054 4675.33 917 889 222.9
D 8 195 863178 3868.37 917 889 222.9
D 2 250 164244 732.84 917 889 222.9

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