ASTROSAT CZTI

Data Quality Report

Orbit 12043

Creation date: 2024-06-27T16:21:38.806988
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_085T02_9000001784_12043cztM0_level2.evt modeM0/AS1A03_085T02_9000001784_12043cztM0_level2_quad_clean.evt
Size (bytes)524,044,80098,075,520
Size499.8 MB 93.5 MB
Events in quadrant A3,559,722645,140
Events in quadrant B4,864,018636,739
Events in quadrant C3,124,779626,123
Events in quadrant D3,875,293602,749

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147883
B0191572
C0137192
D0156862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65871281.943221%
B65873575.419766%
C6587510.774252%
D65881372.079539%

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 7823 6588 17 17 0.22% 0.26%
B 7823 6588 164 164 2.10% 2.49%
C 7823 6588 0 0 0.00% 0.00%
D 7824 6589 73 73 0.93% 1.11%

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 106061 622.03 834 818 169.2
A 1 178 54609 317.93 834 818 169.2
A 1 161 48212 280.12 834 818 169.2
B 4 239 1073778 6753.2 825 807 158.9
B 4 206 268887 1687.28 825 807 158.9
B 15 204 150889 944.61 825 807 158.9
C 14 234 15652 80.25 797 803 185.0
C 13 61 5660 26.25 797 803 185.0
C 0 207 3327 13.64 797 803 185.0
D 1 52 344719 1812.49 795 773 189.8
D 8 195 259073 1361.16 795 773 189.8
D 13 104 124276 650.82 795 773 189.8

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