ASTROSAT CZTI

Data Quality Report

Orbit 29503

Creation date: 2024-06-27T20:04:47.206111
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_048T05_9000004250_29503cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29503cztM0_level2_quad_clean.evt
Size (bytes)775,062,72078,039,360
Size739.2 MB 74.4 MB
Events in quadrant A3,259,590499,331
Events in quadrant B3,450,581506,444
Events in quadrant C3,763,001488,666
Events in quadrant D12,554,511408,194

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135761
B0141311
C0148951
D0418611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65901462.215478%
B65901983.004552%
C65902864.339909%
D6590303946.115326%

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 7175 6591 0 0 0.00% 0.00%
B 7175 6591 41 41 0.57% 0.62%
C 7175 6591 17 17 0.24% 0.26%
D 7175 6591 2995 2995 41.74% 45.44%

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 13 254 12354 67.58 843 824 170.6
A 3 137 8024 42.2 843 824 170.6
A 0 226 7127 36.94 843 824 170.6
B 15 222 121281 751.18 831 809 160.4
B 0 190 30959 188.0 831 809 160.4
B 12 111 19273 115.13 831 809 160.4
C 3 233 226751 1194.92 809 816 189.1
C 7 247 186705 983.13 809 816 189.1
C 14 238 151886 798.98 809 816 189.1
D 8 195 5766152 34698.68 695 678 166.2
D 12 33 3559706 21419.5 695 678 166.2
D 7 238 481081 2891.24 695 678 166.2

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