ASTROSAT CZTI

Data Quality Report

Orbit 29355

Creation date: 2024-06-27T20:03:08.652977
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/AS1T03_279T01_9000004218_29355cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29355cztM0_level2_quad_clean.evt
Size (bytes)644,866,560105,834,240
Size615.0 MB 100.9 MB
Events in quadrant A3,391,691723,035
Events in quadrant B3,522,441723,563
Events in quadrant C4,229,019677,542
Events in quadrant D7,969,466650,573

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137381
B0141161
C0169511
D0280401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6169560.907765%
B6170841.361426%
C61703455.591572%
D6170183429.724473%

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 7449 6170 0 0 0.00% 0.00%
B 7450 6171 2 2 0.03% 0.03%
C 7450 6171 21 21 0.28% 0.34%
D 7450 6171 1433 1433 19.23% 23.22%

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 0 13 64962 381.96 860 846 167.9
A 13 254 12035 66.66 860 846 167.9
A 0 226 7452 39.35 860 846 167.9
B 10 245 98222 630.19 841 824 154.6
B 0 189 49509 315.0 841 824 154.6
B 15 33 32306 203.7 841 824 154.6
C 3 233 640549 3364.71 815 822 190.1
C 14 238 173216 906.72 815 822 190.1
C 10 9 157790 825.59 815 822 190.1
D 12 33 1899461 10702.79 751 735 177.4
D 1 52 1810689 10202.4 751 735 177.4
D 7 80 491080 2763.99 751 735 177.4

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