ASTROSAT CZTI

Data Quality Report

Orbit 09373

Creation date: 2024-06-27T15:45:12.000283
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_009T01_9000001328_09373cztM0_level2.evt modeM0/AS1A03_009T01_9000001328_09373cztM0_level2_quad_clean.evt
Size (bytes)1,164,807,360187,453,440
Size1.1 GB 178.8 MB
Events in quadrant A9,563,2441,160,787
Events in quadrant B7,099,0361,183,595
Events in quadrant C7,753,7681,176,888
Events in quadrant D9,843,5921,116,954

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038703202
B031333182
C034446297
D039581321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03062
B03060
C03060
D03062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0121
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A150682091.387045%
B150581651.095763%
C150501410.936877%
D150324803.193188%

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 16328 15143 20 20 0.12% 0.13%
B 16328 15146 7 7 0.04% 0.05%
C 16328 15139 2 2 0.01% 0.01%
D 16328 15141 315 315 1.93% 2.08%

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 5 2652665 7607.3 1711 1674 348.5
A 1 162 122974 348.08 1711 1674 348.5
A 15 174 36169 98.99 1711 1674 348.5
B 0 214 154830 465.17 1725 1683 329.2
B 0 219 56073 165.21 1725 1683 329.2
B 0 187 44825 131.04 1725 1683 329.2
C 9 68 1230122 3183.77 1666 1670 385.8
C 10 22 15721 36.42 1666 1670 385.8
C 13 61 12588 28.3 1666 1670 385.8
D 8 195 1459365 3536.07 1627 1581 412.3
D 1 52 1269433 3075.37 1627 1581 412.3
D 7 71 346325 836.23 1627 1581 412.3

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