ASTROSAT CZTI

Data Quality Report

Orbit 06458

Creation date: 2024-06-27T15:07:29.621674
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/AS1A02_191T01_9000000854_06458cztM0_level2.evt modeM0/AS1A02_191T01_9000000854_06458cztM0_level2_quad_clean.evt
Size (bytes)438,696,00097,536,960
Size418.4 MB 93.0 MB
Events in quadrant A3,208,232621,132
Events in quadrant B3,283,204639,189
Events in quadrant C3,099,369615,073
Events in quadrant D3,214,022585,904

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144292
B0145881
C0144121
D0145601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7070871.230552%
B7070811.145686%
C7070650.919378%
D7070751.060820%

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 7670 7071 0 0 0.00% 0.00%
B 7670 7071 3 3 0.04% 0.04%
C 7670 7071 0 0 0.00% 0.00%
D 7670 7071 0 0 0.00% 0.00%

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 13 14 29033 168.29 819 801 167.8
A 8 15 11459 63.53 819 801 167.8
A 10 133 9618 52.56 819 801 167.8
B 0 229 44862 277.82 822 804 158.6
B 4 81 22454 136.52 822 804 158.6
B 0 228 17297 104.0 822 804 158.6
C 1 16 20698 109.3 785 784 182.2
C 10 170 9429 47.45 785 784 182.2
C 13 61 6324 30.41 785 784 182.2
D 2 152 57818 293.18 788 761 194.6
D 8 195 54636 276.83 788 761 194.6
D 5 97 25063 124.87 788 761 194.6

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