ASTROSAT CZTI

Data Quality Report

Orbit 34060

Creation date: 2024-06-27T20:56:00.970712
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/AS1A06_003T04_9000004866_34060cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34060cztM0_level2_quad_clean.evt
Size (bytes)685,578,24054,590,400
Size653.8 MB 52.1 MB
Events in quadrant A8,471,869247,240
Events in quadrant B4,781,616339,639
Events in quadrant C3,451,215362,224
Events in quadrant D3,712,518344,179

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287773
B0176712
C0138502
D0147042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5118254049.628761%
B511866312.954279%
C5118941.836655%
D51181072.090660%

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 7210 5119 2388 2388 33.12% 46.65%
B 7210 5118 530 530 7.35% 10.36%
C 7210 5119 83 83 1.15% 1.62%
D 7210 5119 96 96 1.33% 1.88%

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 15 169 6631764 70481.01 470 462 94.1
A 10 83 15545 160.31 470 462 94.1
A 7 16 10008 101.46 470 462 94.1
B 5 172 672276 5510.02 649 635 121.9
B 5 31 400144 3277.5 649 635 121.9
B 5 15 391383 3205.63 649 635 121.9
C 0 10 308289 2089.81 647 654 147.2
C 15 214 225336 1526.3 647 654 147.2
C 3 233 148154 1001.99 647 654 147.2
D 8 195 468242 2957.08 646 629 158.1
D 13 249 289793 1828.61 646 629 158.1
D 13 168 199862 1259.9 646 629 158.1

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