ASTROSAT CZTI

Data Quality Report

Orbit 11973

Creation date: 2024-06-27T16:20:47.950552
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_082T01_9000001772_11973cztM0_level2.evt modeM0/AS1A04_082T01_9000001772_11973cztM0_level2_quad_clean.evt
Size (bytes)494,974,08098,366,400
Size472.0 MB 93.8 MB
Events in quadrant A3,421,935632,793
Events in quadrant B4,047,680633,622
Events in quadrant C3,097,061624,322
Events in quadrant D3,943,909596,227

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149653
B0168122
C0143412
D0163402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7069711.004385%
B70692022.857547%
C7069270.381949%
D7069981.386335%

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 7705 7071 14 14 0.18% 0.20%
B 7705 7071 86 86 1.12% 1.22%
C 7705 7071 0 0 0.00% 0.00%
D 7705 7071 60 60 0.78% 0.85%

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 1 162 99780 599.79 809 790 165.0
A 11 29 79164 474.88 809 790 165.0
A 1 178 47688 284.16 809 790 165.0
B 4 239 649143 4183.5 813 791 155.0
B 15 204 80832 516.46 813 791 155.0
B 11 51 48035 304.84 813 791 155.0
C 0 207 8482 42.03 792 794 182.9
C 13 61 5833 27.55 792 794 182.9
C 14 234 2229 7.85 792 794 182.9
D 8 195 272214 1321.51 771 755 205.4
D 4 95 198021 960.32 771 755 205.4
D 2 136 110004 531.84 771 755 205.4

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