ASTROSAT CZTI

Data Quality Report

Orbit 07573

Creation date: 2024-06-27T15:21:11.771088
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/AS1A02_024T01_9000001044_07573cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07573cztM0_level2_quad_clean.evt
Size (bytes)557,608,32094,101,120
Size531.8 MB 89.7 MB
Events in quadrant A3,817,901575,007
Events in quadrant B3,941,025585,451
Events in quadrant C4,077,074578,879
Events in quadrant D4,511,588557,326

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166133
B0169262
C0176152
D0189062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7952460.578471%
B7952951.194668%
C7952470.591046%
D79521742.188129%

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 9392 7954 3 3 0.03% 0.04%
B 9392 7954 1 1 0.01% 0.01%
C 9392 7954 0 0 0.00% 0.00%
D 9392 7954 67 67 0.71% 0.84%

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 15 239 68921 342.72 967 947 198.3
A 3 1 22107 106.69 967 947 198.3
A 0 226 9189 41.56 967 947 198.3
B 0 214 61819 326.56 975 952 186.4
B 0 219 30960 161.0 975 952 186.4
B 12 111 19226 98.04 975 952 186.4
C 9 68 373799 1693.0 943 949 220.2
C 8 229 10372 42.79 943 949 220.2
C 1 16 7954 31.81 943 949 220.2
D 2 152 660165 2836.35 939 908 232.4
D 5 233 117503 501.63 939 908 232.4
D 2 14 86151 366.75 939 908 232.4

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