ASTROSAT CZTI

Data Quality Report

Orbit 11930

Creation date: 2024-06-27T16:20:13.918700
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/AS1A04_124T01_9000001766_11930cztM0_level2.evt modeM0/AS1A04_124T01_9000001766_11930cztM0_level2_quad_clean.evt
Size (bytes)491,054,400133,499,520
Size468.3 MB 127.3 MB
Events in quadrant A3,502,886895,701
Events in quadrant B4,035,627904,601
Events in quadrant C3,161,922883,886
Events in quadrant D3,671,037846,993

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155423
B0171012
C0150182
D0161532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7364730.991309%
B73642453.326996%
C7364190.258012%
D7364600.814775%

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 8715 7367 8 8 0.09% 0.11%
B 8715 7367 93 93 1.07% 1.26%
C 8715 7367 0 0 0.00% 0.00%
D 8715 7367 35 35 0.40% 0.48%

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 1 162 75408 436.86 838 818 170.7
A 8 15 52714 303.94 838 818 170.7
A 1 178 33847 193.44 838 818 170.7
B 4 239 542254 3397.67 841 822 159.4
B 15 204 83947 521.64 841 822 159.4
B 3 64 42695 262.77 841 822 159.4
C 13 61 6005 27.72 810 811 187.4
C 14 234 3132 12.39 810 811 187.4
C 12 4 2072 6.73 810 811 187.4
D 8 195 240396 1262.97 803 777 189.7
D 1 52 111510 583.65 803 777 189.7
D 13 104 64819 337.55 803 777 189.7

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