ASTROSAT CZTI

Data Quality Report

Orbit 06012

Creation date: 2024-06-27T15:01:47.756017
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_086T01_9000000774_06012cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_06012cztM0_level2_quad_clean.evt
Size (bytes)377,758,08085,461,120
Size360.3 MB 81.5 MB
Events in quadrant A3,175,989549,707
Events in quadrant B3,142,444565,203
Events in quadrant C2,174,123583,880
Events in quadrant D2,608,470539,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013929
B013832
C013933
D013941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183835598
B0178355282
C0138753565
D0159834419

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4816781.619601%
B48621913.928425%
C5114140.273758%
D50161583.149920%

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 7075 5503 8 8 0.11% 0.15%
B 7075 5542 118 118 1.67% 2.13%
C 7075 5775 0 0 0.00% 0.00%
D 7075 5702 116 116 1.64% 2.03%

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 13 34 1035342 9375.01 534 521 110.4
A 7 16 74862 673.5 534 521 110.4
A 8 15 6530 54.44 534 521 110.4
B 3 64 786155 7356.58 543 530 106.8
B 15 204 77299 718.86 543 530 106.8
B 7 221 67610 628.14 543 530 106.8
C 1 16 12762 95.33 551 554 128.1
C 12 4 4772 32.94 551 554 128.1
C 13 61 4407 30.09 551 554 128.1
D 12 110 478449 3602.49 534 517 132.7
D 12 221 62597 467.94 534 517 132.7
D 8 195 17381 127.12 534 517 132.7

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