ASTROSAT CZTI

Data Quality Report

Orbit 24345

Creation date: 2024-06-27T19:05:00.044446
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/AS1A07_145T01_9000003594_24345cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24345cztM0_level2_quad_clean.evt
Size (bytes)571,271,040110,352,960
Size544.8 MB 105.2 MB
Events in quadrant A3,146,082731,530
Events in quadrant B3,255,017765,302
Events in quadrant C4,882,988724,324
Events in quadrant D5,599,044689,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133482
B0136613
C0190602
D0209992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6178310.501781%
B6177380.615185%
C61772033.286385%
D61773635.876639%

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 7468 6179 0 0 0.00% 0.00%
B 7467 6178 0 0 0.00% 0.00%
C 7467 6178 2 2 0.03% 0.03%
D 7467 6178 228 228 3.05% 3.69%

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 9153 51.28 816 802 162.8
A 3 137 7027 38.23 816 802 162.8
A 0 226 6766 36.62 816 802 162.8
B 0 230 23046 144.99 826 808 153.4
B 12 111 17984 111.99 826 808 153.4
B 11 111 16293 100.96 826 808 153.4
C 7 247 1584667 8618.77 802 809 183.8
C 14 238 130573 706.13 802 809 183.8
C 2 16 22333 117.13 802 809 183.8
D 8 195 1478186 7728.52 791 772 191.2
D 1 52 815304 4260.91 791 772 191.2
D 7 238 159372 829.65 791 772 191.2

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