ASTROSAT CZTI

Data Quality Report

Orbit 06218

Creation date: 2024-06-27T15:04:15.530608
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/AS1G06_103T01_9000000812_06218cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06218cztM0_level2_quad_clean.evt
Size (bytes)404,426,88080,170,560
Size385.7 MB 76.5 MB
Events in quadrant A3,060,176499,611
Events in quadrant B3,057,489508,824
Events in quadrant C2,791,359502,102
Events in quadrant D2,909,235476,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01324
B01328
C01324
D01322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013702458
B013727493
C013144383
D013675455

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6310260.412044%
B6292771.223776%
C6334190.299968%
D6304400.634518%

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 7402 6499 0 0 0.00% 0.00%
B 7402 6497 29 29 0.39% 0.45%
C 7402 6503 0 0 0.00% 0.00%
D 7402 6503 15 15 0.20% 0.23%

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 15 236 197586 1307.21 732 714 150.6
A 15 239 17350 110.46 732 714 150.6
A 13 34 16115 102.26 732 714 150.6
B 0 219 197492 1385.16 734 717 142.1
B 12 111 14394 96.28 734 717 142.1
B 11 111 11500 75.9 734 717 142.1
C 1 16 6439 34.55 713 717 165.6
C 13 61 5667 29.89 713 717 165.6
C 8 222 2934 13.39 713 717 165.6
D 2 136 157657 910.71 707 685 172.4
D 12 110 26459 149.53 707 685 172.4
D 2 206 20874 117.13 707 685 172.4

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