ASTROSAT CZTI

Data Quality Report

Orbit 31046

Creation date: 2024-06-27T20:22:41.964416
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/AS1A10_071T63_9000004486_31046cztM0_level2.evt modeM0/AS1A10_071T63_9000004486_31046cztM0_level2_quad_clean.evt
Size (bytes)535,075,20097,318,080
Size510.3 MB 92.8 MB
Events in quadrant A3,094,490651,135
Events in quadrant B5,148,008645,415
Events in quadrant C3,397,975617,612
Events in quadrant D4,143,577599,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132011
B0196091
C0141311
D0164581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6204540.870406%
B62051442.320709%
C62051241.998388%
D62051642.643030%

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 7319 6204 0 0 0.00% 0.00%
B 7320 6205 30 30 0.41% 0.48%
C 7319 6204 8 8 0.11% 0.13%
D 7320 6205 103 103 1.41% 1.66%

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 13 254 12220 71.58 800 784 159.8
A 3 137 7891 44.48 800 784 159.8
A 0 226 6811 37.72 800 784 159.8
B 6 159 1727219 11461.75 783 763 150.6
B 0 155 121097 798.88 783 763 150.6
B 5 172 98585 649.43 783 763 150.6
C 3 233 189902 1063.11 760 766 177.9
C 14 238 123390 689.25 760 766 177.9
C 0 10 73772 410.36 760 766 177.9
D 8 195 763049 4157.6 768 748 183.4
D 13 249 236899 1287.97 768 748 183.4
D 2 250 118627 642.91 768 748 183.4

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