ASTROSAT CZTI

Data Quality Report

Orbit 29504

Creation date: 2024-06-27T20:04:47.995659
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_29504cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29504cztM0_level2_quad_clean.evt
Size (bytes)818,475,84091,509,120
Size780.6 MB 87.3 MB
Events in quadrant A3,994,592569,875
Events in quadrant B4,135,773577,333
Events in quadrant C4,444,486558,165
Events in quadrant D11,679,448516,164

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168241
B0171391
C0178341
D0402757

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79012883.645108%
B79023464.378638%
C79024305.441660%
D7901194124.566511%

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 7951 7903 0 0 0.00% 0.00%
B 7952 7904 42 42 0.53% 0.53%
C 7952 7904 5 5 0.06% 0.06%
D 7951 7903 1560 1560 19.62% 19.74%

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 12 96 46038 215.8 1022 999 208.7
A 13 254 14586 65.1 1022 999 208.7
A 3 137 10126 43.73 1022 999 208.7
B 15 222 120433 604.94 1007 980 197.5
B 12 111 24307 118.13 1007 980 197.5
B 11 111 22136 107.14 1007 980 197.5
C 3 233 347849 1497.01 981 989 231.7
C 14 238 177778 763.0 981 989 231.7
C 7 247 46096 194.68 981 989 231.7
D 8 195 5296434 24041.52 914 892 220.3
D 12 33 2574374 11683.49 914 892 220.3
D 7 238 262097 1185.86 914 892 220.3

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