ASTROSAT CZTI

Data Quality Report

Orbit 28760

Creation date: 2024-06-27T19:55:56.568037
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_093T01_9000004128_28760cztM0_level2.evt modeM0/AS1A10_093T01_9000004128_28760cztM0_level2_quad_clean.evt
Size (bytes)539,763,84081,783,360
Size514.8 MB 78.0 MB
Events in quadrant A3,298,336529,007
Events in quadrant B3,685,664541,974
Events in quadrant C4,113,464494,682
Events in quadrant D4,816,526464,982

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137282
B0149612
C0168402
D0185693

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6395100.156372%
B6395901.407349%
C6395891.391712%
D63943074.801376%

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 7740 6396 1 1 0.01% 0.02%
B 7740 6396 59 59 0.76% 0.92%
C 7740 6396 0 0 0.00% 0.00%
D 7739 6395 300 300 3.88% 4.69%

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 14 239 31565 183.3 843 830 167.7
A 13 254 11696 64.8 843 830 167.7
A 15 174 10807 59.5 843 830 167.7
B 5 255 288803 1830.47 842 823 157.3
B 4 80 61117 383.24 842 823 157.3
B 12 111 18637 113.23 842 823 157.3
C 3 233 824316 4500.53 801 811 183.0
C 14 238 135716 737.27 801 811 183.0
C 4 254 9979 50.1 801 811 183.0
D 1 52 1131638 6033.82 787 767 187.4
D 8 195 564750 3009.16 787 767 187.4
D 12 233 66640 351.47 787 767 187.4

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