ASTROSAT CZTI

Data Quality Report

Orbit 14983

Creation date: 2024-06-27T17:02:08.549551
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/AS1T02_056T01_9000002210_14983cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14983cztM0_level2_quad_clean.evt
Size (bytes)543,006,72095,863,680
Size517.9 MB 91.4 MB
Events in quadrant A3,957,676621,360
Events in quadrant B5,464,601606,282
Events in quadrant C3,313,074611,542
Events in quadrant D3,254,187595,837

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157213
B0205642
C0138652
D0141742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67152573.827252%
B67156189.203276%
C6715821.221147%
D67151181.757260%

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 7646 6716 113 113 1.48% 1.68%
B 7646 6716 363 363 4.75% 5.41%
C 7646 6717 0 0 0.00% 0.00%
D 7646 6717 16 16 0.21% 0.24%

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 13 248 408872 2400.93 838 819 170.0
A 1 162 121867 712.23 838 819 170.0
A 12 189 67954 395.01 838 819 170.0
B 10 245 1505607 9569.1 821 800 157.3
B 3 64 393622 2497.96 821 800 157.3
B 10 16 144878 916.2 821 800 157.3
C 3 233 157829 845.25 808 813 185.8
C 13 61 5755 26.6 808 813 185.8
C 10 22 5122 23.19 808 813 185.8
D 7 38 59467 299.71 814 792 195.8
D 13 249 55637 280.14 814 792 195.8
D 2 234 25603 126.73 814 792 195.8

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