ASTROSAT CZTI

Data Quality Report

Orbit 10264

Creation date: 2024-06-27T15:57:03.588824
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/AS1A03_052T01_9000001480_10264cztM0_level2.evt modeM0/AS1A03_052T01_9000001480_10264cztM0_level2_quad_clean.evt
Size (bytes)469,990,080103,806,720
Size448.2 MB 99.0 MB
Events in quadrant A3,254,315684,310
Events in quadrant B3,655,160685,667
Events in quadrant C3,087,542666,535
Events in quadrant D3,779,960639,052

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139282
B0150351
C0137741
D0154081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67121171.743147%
B67121362.026222%
C6712731.087604%
D67121542.294398%

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 7677 6712 1 1 0.01% 0.01%
B 7677 6712 17 17 0.22% 0.25%
C 7677 6713 0 0 0.00% 0.00%
D 7677 6712 52 52 0.68% 0.77%

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 15 34672 200.19 830 813 169.1
A 8 5 13017 72.15 830 813 169.1
A 15 174 8128 43.25 830 813 169.1
B 4 239 133273 840.03 822 804 157.7
B 11 51 105363 663.04 822 804 157.7
B 0 214 89946 565.28 822 804 157.7
C 13 61 6022 28.72 790 793 182.1
C 14 67 4231 18.88 790 793 182.1
C 8 222 2729 10.63 790 793 182.1
D 1 52 192331 1011.03 794 773 189.5
D 2 16 167963 882.42 794 773 189.5
D 12 233 155922 818.87 794 773 189.5

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