ASTROSAT CZTI

Data Quality Report

Orbit 03334

Creation date: 2024-06-27T14:27:43.087427
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_246T01_9000000450_03334cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03334cztM0_level2_quad_clean.evt
Size (bytes)526,276,80074,914,560
Size501.9 MB 71.4 MB
Events in quadrant A3,515,953434,966
Events in quadrant B4,484,360442,620
Events in quadrant C3,719,619440,360
Events in quadrant D3,703,206422,475

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158552
B0181461
C0163971
D0167971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75902633.465086%
B75902923.847167%
C75901992.621871%
D75902743.610013%

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 7630 7591 2 2 0.03% 0.03%
B 7630 7591 11 11 0.14% 0.14%
C 7630 7591 20 20 0.26% 0.26%
D 7630 7591 66 66 0.87% 0.87%

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 13 14 25986 134.26 899 878 187.0
A 0 226 10155 49.61 899 878 187.0
A 0 118 9394 45.54 899 878 187.0
B 15 204 620924 3445.65 906 883 179.9
B 10 249 125235 691.04 906 883 179.9
B 14 167 110083 606.84 906 883 179.9
C 14 223 116939 558.04 875 879 208.0
C 1 16 58969 279.31 875 879 208.0
C 8 208 49506 233.81 875 879 208.0
D 13 223 279751 1271.14 879 850 219.4
D 13 239 33349 148.12 879 850 219.4
D 9 85 26924 118.84 879 850 219.4

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