ASTROSAT CZTI

Data Quality Report

Orbit 30039

Creation date: 2024-06-27T20:10:21.573524
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_082T06_9000004318_30039cztM0_level2.evt modeM0/AS1A10_082T06_9000004318_30039cztM0_level2_quad_clean.evt
Size (bytes)572,676,48078,370,560
Size546.1 MB 74.7 MB
Events in quadrant A3,632,935477,485
Events in quadrant B5,817,177473,517
Events in quadrant C3,665,897456,987
Events in quadrant D3,734,513458,533

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152802
B0224862
C0152832
D0155552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72721421.952695%
B72722273.121562%
C72721892.599010%
D7272911.251375%

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 7807 7273 1 1 0.01% 0.01%
B 7807 7273 8 8 0.10% 0.11%
C 7807 7273 0 0 0.00% 0.00%
D 7807 7273 18 18 0.23% 0.25%

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 8 192 23652 121.2 933 915 187.6
A 13 254 13617 67.71 933 915 187.6
A 3 137 9433 45.41 933 915 187.6
B 6 159 2034145 11419.61 916 892 178.0
B 0 190 96420 536.53 916 892 178.0
B 5 255 54884 303.24 916 892 178.0
C 14 238 152651 728.4 885 891 208.3
C 3 233 33138 154.78 885 891 208.3
C 14 254 17706 80.71 885 891 208.3
D 8 195 192404 861.59 898 877 222.3
D 2 250 59666 264.47 898 877 222.3
D 2 120 36512 160.31 898 877 222.3

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