ASTROSAT CZTI

Data Quality Report

Orbit 30359

Creation date: 2024-06-27T20:14:14.105446
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/AS1A10_053T15_9000004364_30359cztM0_level2.evt modeM0/AS1A10_053T15_9000004364_30359cztM0_level2_quad_clean.evt
Size (bytes)616,654,08096,822,720
Size588.1 MB 92.3 MB
Events in quadrant A3,406,830623,285
Events in quadrant B5,293,269623,102
Events in quadrant C5,963,184592,757
Events in quadrant D3,538,231605,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146052
B0212021
C0228081
D0152201

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7004821.170760%
B70052143.054961%
C70054115.867238%
D70051121.598858%

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 7174 7006 1 1 0.01% 0.01%
B 7175 7006 0 0 0.00% 0.00%
C 7175 7006 41 41 0.57% 0.59%
D 7175 7006 21 21 0.29% 0.30%

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 14 239 64809 369.61 860 842 173.1
A 13 254 14104 76.63 860 842 173.1
A 8 192 10064 53.29 860 842 173.1
B 6 159 1949613 11825.8 847 823 164.8
B 12 111 20734 120.83 847 823 164.8
B 11 111 19162 111.29 847 823 164.8
C 3 233 2615972 13537.89 821 826 193.2
C 14 238 130543 671.51 821 826 193.2
C 2 114 16209 79.63 821 826 193.2
D 13 104 141332 692.57 841 822 202.9
D 2 250 122850 601.47 841 822 202.9
D 8 195 52773 256.07 841 822 202.9

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