ASTROSAT CZTI

Data Quality Report

Orbit 25473

Creation date: 2024-06-27T19:18:03.167964
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/AS1A09_085T02_9000003716_25473cztM0_level2.evt modeM0/AS1A09_085T02_9000003716_25473cztM0_level2_quad_clean.evt
Size (bytes)491,515,20072,031,680
Size468.7 MB 68.7 MB
Events in quadrant A3,565,626441,934
Events in quadrant B3,370,394448,374
Events in quadrant C3,351,078428,749
Events in quadrant D4,164,759416,207

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148180
B0138970
C0138190
D0164670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6388731.142768%
B63891051.643450%
C63891221.909532%
D63892233.490374%

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 8598 6390 0 0 0.00% 0.00%
B 8599 6391 5 5 0.06% 0.08%
C 8599 6391 0 0 0.00% 0.00%
D 8599 6391 153 153 1.78% 2.39%

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 6 16 261722 1524.51 857 843 171.1
A 13 254 9352 49.72 857 843 171.1
A 3 137 7554 39.22 857 843 171.1
B 0 245 39212 240.68 849 830 159.5
B 12 111 19353 116.15 849 830 159.5
B 11 111 17728 105.96 849 830 159.5
C 14 238 134227 705.48 822 828 189.1
C 2 16 9636 46.58 822 828 189.1
C 13 61 5660 25.55 822 828 189.1
D 1 52 606641 3111.4 818 796 194.7
D 7 238 305925 1567.03 818 796 194.7
D 2 82 63466 321.85 818 796 194.7

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