ASTROSAT CZTI

Data Quality Report

Orbit 29418

Creation date: 2024-06-27T20:03:55.739494
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_102T11_9000004230_29418cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29418cztM0_level2_quad_clean.evt
Size (bytes)769,236,48077,400,000
Size733.6 MB 73.8 MB
Events in quadrant A3,497,884475,084
Events in quadrant B4,141,479479,412
Events in quadrant C8,454,383450,208
Events in quadrant D6,715,037436,213

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149541
B0168551
C0303571
D0248383

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72081832.538846%
B72092924.050492%
C7209154921.487030%
D7208106514.775250%

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 7298 7209 1 1 0.01% 0.01%
B 7299 7210 42 42 0.58% 0.58%
C 7299 7210 747 747 10.23% 10.36%
D 7297 7207 636 636 8.72% 8.82%

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 0 13 49902 269.75 894 874 181.8
A 13 254 12920 66.28 894 874 181.8
A 3 137 8849 43.88 894 874 181.8
B 10 245 581781 3422.82 879 855 169.7
B 15 33 54004 313.15 879 855 169.7
B 12 111 20951 118.41 879 855 169.7
C 3 233 5121245 26846.12 811 812 190.7
C 14 238 128487 669.39 811 812 190.7
C 15 208 20128 101.27 811 812 190.7
D 1 52 1744676 9006.4 811 788 193.6
D 7 80 1167131 6023.64 811 788 193.6
D 8 195 310985 1602.03 811 788 193.6

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