ASTROSAT CZTI

Data Quality Report

Orbit 08129

Creation date: 2024-06-27T15:28:23.380935
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_178T01_9000001118_08129cztM0_level2.evt modeM0/AS1A02_178T01_9000001118_08129cztM0_level2_quad_clean.evt
Size (bytes)885,545,280162,887,040
Size844.5 MB 155.3 MB
Events in quadrant A6,337,595997,983
Events in quadrant B6,627,9381,014,845
Events in quadrant C6,326,8931,000,856
Events in quadrant D6,592,797967,600

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02820
B02820
C02820
D02820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02819412
B0287023
C0283196
D0293083

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A137731871.357729%
B137772251.633157%
C137761601.161440%
D137771891.371852%

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 15987 13778 0 0 0.00% 0.00%
B 15987 13778 24 24 0.15% 0.17%
C 15987 13778 1 1 0.01% 0.01%
D 15987 13777 33 33 0.21% 0.24%

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 8 15 60744 177.48 1630 1591 333.3
A 0 226 15008 40.26 1630 1591 333.3
A 12 194 14689 39.3 1630 1591 333.3
B 10 16 143611 452.34 1637 1592 314.0
B 0 214 83604 261.21 1637 1592 314.0
B 12 111 34706 105.47 1637 1592 314.0
C 1 16 85276 225.92 1598 1602 370.4
C 13 61 12077 28.28 1598 1602 370.4
C 8 222 9197 20.51 1598 1602 370.4
D 1 52 355378 896.49 1582 1538 394.7
D 13 122 77625 192.77 1582 1538 394.7
D 7 71 67273 166.55 1582 1538 394.7

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