ASTROSAT CZTI

Data Quality Report

Orbit 11045

Creation date: 2024-06-27T16:07:24.827742
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_113T02_9000001606_11045cztM0_level2.evt modeM0/AS1A04_113T02_9000001606_11045cztM0_level2_quad_clean.evt
Size (bytes)740,191,68067,173,120
Size705.9 MB 64.1 MB
Events in quadrant A10,240,945348,039
Events in quadrant B4,443,011410,445
Events in quadrant C3,217,514419,122
Events in quadrant D4,074,029400,296

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0349733
B0173112
C0137002
D0163262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6523253638.877817%
B65234546.959988%
C65231692.590832%
D65232283.495324%

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 8938 6523 1835 1835 20.53% 28.13%
B 8938 6523 178 178 1.99% 2.73%
C 8938 6524 0 0 0.00% 0.00%
D 8938 6524 52 52 0.58% 0.80%

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 14 238 4831932 33821.76 711 696 142.8
A 8 5 2377681 16640.43 711 696 142.8
A 15 174 264982 1850.17 711 696 142.8
B 4 239 1121680 7145.25 827 807 156.9
B 15 255 31946 198.5 827 807 156.9
B 0 187 29883 185.35 827 807 156.9
C 13 61 6015 27.56 824 829 188.2
C 14 67 5090 22.64 824 829 188.2
C 3 202 2073 6.61 824 829 188.2
D 11 129 368321 1920.37 814 794 191.4
D 14 34 179867 935.68 814 794 191.4
D 1 52 153777 799.35 814 794 191.4

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