ASTROSAT CZTI

Data Quality Report

Orbit 14041

Creation date: 2024-06-27T16:49:33.861753
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_162T01_9000002074_14041cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14041cztM0_level2_quad_clean.evt
Size (bytes)439,202,880125,225,280
Size418.9 MB 119.4 MB
Events in quadrant A3,082,513862,445
Events in quadrant B3,174,889877,361
Events in quadrant C3,025,945832,258
Events in quadrant D3,601,759793,289

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130803
B0133772
C0128932
D0149782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6124300.489876%
B6124610.996081%
C6124100.163292%
D61252283.722449%

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 7400 6126 1 1 0.01% 0.02%
B 7400 6126 7 7 0.09% 0.11%
C 7400 6126 0 0 0.00% 0.00%
D 7401 6127 194 194 2.62% 3.17%

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 15 222 66968 435.16 753 741 152.2
A 12 189 62756 407.49 753 741 152.2
A 1 162 26252 167.63 753 741 152.2
B 0 189 72491 512.65 756 740 140.0
B 10 245 52156 367.36 756 740 140.0
B 0 229 24257 168.03 756 740 140.0
C 3 233 223516 1362.56 717 720 163.5
C 13 61 5405 28.65 717 720 163.5
C 12 4 4242 21.54 717 720 163.5
D 15 0 464722 2508.69 700 684 185.0
D 1 52 135734 730.11 700 684 185.0
D 13 104 106720 573.25 700 684 185.0

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