ASTROSAT CZTI

Data Quality Report

Orbit 17160

Creation date: 2024-06-27T17:32:58.883054
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_059T01_9000002546_17160cztM0_level2.evt modeM0/AS1T03_059T01_9000002546_17160cztM0_level2_quad_clean.evt
Size (bytes)848,568,960157,458,240
Size809.3 MB 150.2 MB
Events in quadrant A6,325,623979,572
Events in quadrant B6,216,844992,096
Events in quadrant C6,327,872943,817
Events in quadrant D5,939,951947,510

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274533
B0270393
C0272093
D0271413

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131113072.341545%
B131122992.280354%
C131123222.455766%
D131122301.754118%

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 14696 13111 11 11 0.07% 0.08%
B 14697 13112 4 4 0.03% 0.03%
C 14697 13112 0 0 0.00% 0.00%
D 14697 13112 1 1 0.01% 0.01%

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 12 96 122697 378.92 1588 1550 319.7
A 12 189 99859 307.49 1588 1550 319.7
A 0 226 13837 38.43 1588 1550 319.7
B 12 111 38467 120.06 1582 1541 307.6
B 11 111 33473 103.82 1582 1541 307.6
B 14 111 29199 89.92 1582 1541 307.6
C 14 238 230688 637.33 1523 1535 359.6
C 3 233 128070 351.92 1523 1535 359.6
C 8 128 15452 38.71 1523 1535 359.6
D 2 234 53581 138.77 1548 1503 375.3
D 5 222 27853 70.21 1548 1503 375.3
D 2 152 19233 47.24 1548 1503 375.3

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