ASTROSAT CZTI

Data Quality Report

Orbit 03413

Creation date: 2024-06-27T14:28:40.085888
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/AS1G05_210T01_9000000454_03413cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03413cztM0_level2_quad_clean.evt
Size (bytes)447,410,88083,399,040
Size426.7 MB 79.5 MB
Events in quadrant A3,261,146524,335
Events in quadrant B3,337,423529,881
Events in quadrant C3,439,718518,038
Events in quadrant D3,075,268505,690

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141103
B0142932
C0146082
D0137402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64221592.475864%
B64221422.211149%
C64221852.880723%
D64221312.039863%

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 8497 6424 15 15 0.18% 0.23%
B 8497 6424 2 2 0.02% 0.03%
C 8497 6424 30 30 0.35% 0.47%
D 8497 6424 11 11 0.13% 0.17%

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 0 118 160330 1023.92 767 751 155.9
A 0 31 70845 449.75 767 751 155.9
A 14 249 35483 222.85 767 751 155.9
B 15 204 230682 1525.6 777 758 150.7
B 0 182 26043 167.77 777 758 150.7
B 0 246 24138 155.13 777 758 150.7
C 7 220 279500 1589.91 750 753 175.3
C 9 54 89342 505.29 750 753 175.3
C 1 192 64525 363.74 750 753 175.3
D 13 223 58799 319.31 750 728 181.9
D 2 37 53507 290.22 750 728 181.9
D 3 247 31539 169.42 750 728 181.9

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