ASTROSAT CZTI

Data Quality Report

Orbit 14977

Creation date: 2024-06-27T17:02:03.854854
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_14977cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14977cztM0_level2_quad_clean.evt
Size (bytes)497,393,28074,854,080
Size474.4 MB 71.4 MB
Events in quadrant A3,313,604461,790
Events in quadrant B4,043,090464,633
Events in quadrant C3,286,726449,585
Events in quadrant D3,970,569428,855

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139543
B0161902
C0137432
D0161382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6624280.422705%
B66241982.989130%
C6624150.226449%
D66242173.275966%

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 8825 6627 0 0 0.00% 0.00%
B 8825 6627 96 96 1.09% 1.45%
C 8825 6627 0 0 0.00% 0.00%
D 8825 6627 191 191 2.16% 2.88%

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 1 162 45614 269.29 823 809 166.4
A 12 189 44216 260.89 823 809 166.4
A 1 178 19513 112.42 823 809 166.4
B 3 64 403212 2613.47 818 802 154.0
B 10 245 305138 1976.52 818 802 154.0
B 0 219 45001 287.05 818 802 154.0
C 3 233 160333 865.89 796 803 184.2
C 8 128 10392 52.05 796 803 184.2
C 13 61 5784 27.04 796 803 184.2
D 7 223 642278 3121.32 775 759 205.5
D 13 249 228976 1110.39 775 759 205.5
D 13 172 42533 203.25 775 759 205.5

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