ASTROSAT CZTI

Data Quality Report

Orbit 08614

Creation date: 2024-06-27T15:34:59.898645
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/AS1A03_036T01_9000001204_08614cztM0_level2.evt modeM0/AS1A03_036T01_9000001204_08614cztM0_level2_quad_clean.evt
Size (bytes)436,224,96081,342,720
Size416.0 MB 77.6 MB
Events in quadrant A3,173,893501,164
Events in quadrant B3,526,421511,226
Events in quadrant C2,931,721499,961
Events in quadrant D3,120,005480,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141723
B0149522
C0137122
D0142962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751280.414753%
B67511181.747889%
C6751130.192564%
D6751420.622130%

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 7736 6752 0 0 0.00% 0.00%
B 7736 6752 57 57 0.74% 0.84%
C 7736 6752 0 0 0.00% 0.00%
D 7736 6752 19 19 0.25% 0.28%

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 5 196219 1263.93 762 743 154.7
A 13 14 25706 161.41 762 743 154.7
A 5 16 8093 47.52 762 743 154.7
B 10 16 295740 2002.43 775 756 147.3
B 0 214 109838 740.48 775 756 147.3
B 4 80 39607 263.73 775 756 147.3
C 13 61 5689 28.47 750 754 173.3
C 8 222 3696 16.97 750 754 173.3
C 14 64 2588 10.58 750 754 173.3
D 1 52 98149 497.17 734 716 196.0
D 2 136 67671 341.65 734 716 196.0
D 12 233 55005 277.02 734 716 196.0

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