ASTROSAT CZTI

Data Quality Report

Orbit 28829

Creation date: 2024-06-27T19:56:54.118306
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_121T01_9000004134_28829cztM0_level2.evt modeM0/AS1A10_121T01_9000004134_28829cztM0_level2_quad_clean.evt
Size (bytes)797,158,080111,107,520
Size760.2 MB 106.0 MB
Events in quadrant A3,208,504775,627
Events in quadrant B3,590,134787,781
Events in quadrant C5,566,617732,689
Events in quadrant D11,321,348597,420

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138802
B0150452
C0214072
D0383192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6745410.607858%
B67461301.927068%
C67463455.114142%
D6746265739.386303%

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 8515 6746 0 0 0.00% 0.00%
B 8516 6747 42 42 0.49% 0.62%
C 8516 6746 4 4 0.05% 0.06%
D 8516 6746 2702 2702 31.73% 40.05%

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 14 235 25684 148.93 824 807 167.0
A 13 254 14051 79.28 824 807 167.0
A 3 137 7773 41.7 824 807 167.0
B 5 255 132470 844.65 822 802 155.9
B 10 245 131878 840.85 822 802 155.9
B 5 172 28067 174.9 822 802 155.9
C 3 233 2283256 12568.29 779 784 181.6
C 14 238 155192 850.24 779 784 181.6
C 14 254 46681 252.73 779 784 181.6
D 8 195 4703161 28751.08 686 666 163.6
D 1 52 3787115 23150.37 686 666 163.6
D 7 69 81630 495.01 686 666 163.6

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