ASTROSAT CZTI

Data Quality Report

Orbit 20348

Creation date: 2024-06-27T18:14:13.539118
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/AS1A05_163T01_9000003010_20348cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20348cztM0_level2_quad_clean.evt
Size (bytes)443,154,24095,431,680
Size422.6 MB 91.0 MB
Events in quadrant A3,122,607610,550
Events in quadrant B3,206,902626,347
Events in quadrant C3,231,560607,932
Events in quadrant D3,420,330594,259

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135712
B0137042
C0138922
D0146672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6472340.525340%
B6471470.726317%
C6471751.159017%
D6471751.159017%

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 7622 6473 0 0 0.00% 0.00%
B 7621 6472 0 0 0.00% 0.00%
C 7621 6472 1 1 0.01% 0.02%
D 7621 6472 64 64 0.84% 0.99%

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 6 16 14155 82.7 806 788 161.6
A 13 254 7602 42.16 806 788 161.6
A 0 226 6661 36.33 806 788 161.6
B 0 198 32789 209.07 805 784 153.1
B 12 111 18721 117.17 805 784 153.1
B 11 111 16990 105.86 805 784 153.1
C 14 238 123991 665.56 788 796 185.1
C 3 9 21958 114.33 788 796 185.1
C 8 128 5439 25.08 788 796 185.1
D 7 238 382335 1967.21 794 770 194.0
D 2 234 26657 133.46 794 770 194.0
D 13 138 10429 49.8 794 770 194.0

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