ASTROSAT CZTI

Data Quality Report

Orbit 09434

Creation date: 2024-06-27T15:45:53.751104
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_9000001340_09434cztM0_level2.evt modeM0/AS1A02_178T01_9000001340_09434cztM0_level2_quad_clean.evt
Size (bytes)367,620,48088,171,200
Size350.6 MB 84.1 MB
Events in quadrant A2,927,345587,497
Events in quadrant B2,592,139579,750
Events in quadrant C2,512,968568,839
Events in quadrant D2,737,416560,823

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011816
B01188
C011816
D011816

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134271321
B0124111280
C0122501203
D0129001360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0121
C0120
D0121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5364701.304996%
B5316541.015801%
C5332270.506377%
D5324430.807663%

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 7058 5774 3 3 0.04% 0.05%
B 7058 5785 3 3 0.04% 0.05%
C 7057 5744 0 0 0.00% 0.00%
D 7058 5779 5 5 0.07% 0.09%

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 318204 2343.84 664 651 135.5
A 14 111 21214 151.77 664 651 135.5
A 1 162 18579 132.33 664 651 135.5
B 0 219 19606 153.83 648 634 123.3
B 0 246 18504 144.9 648 634 123.3
B 5 255 14614 113.35 648 634 123.3
C 9 68 39243 266.2 629 633 145.0
C 14 234 16625 110.26 629 633 145.0
C 13 61 4674 27.86 629 633 145.0
D 1 52 143117 890.78 633 617 160.0
D 8 195 79194 491.19 633 617 160.0
D 7 71 49862 307.83 633 617 160.0

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