ASTROSAT CZTI

Data Quality Report

Orbit 06415

Creation date: 2024-06-27T15:06:55.771151
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/AS1C02_011T01_9000000850_06415cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06415cztM0_level2_quad_clean.evt
Size (bytes)546,088,32086,348,160
Size520.8 MB 82.3 MB
Events in quadrant A3,069,264559,318
Events in quadrant B3,198,945567,876
Events in quadrant C2,966,316564,785
Events in quadrant D6,862,405468,756

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134232
B0136721
C0133881
D0246601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65101131.735791%
B65101171.797235%
C6510510.783410%
D6510115617.757296%

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 6960 6512 0 0 0.00% 0.00%
B 6960 6512 2 2 0.03% 0.03%
C 6960 6512 0 0 0.00% 0.00%
D 6960 6512 1119 1119 16.08% 17.18%

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 15 236 30277 184.52 782 765 159.9
A 8 15 17520 104.76 782 765 159.9
A 0 226 7538 42.35 782 765 159.9
B 15 204 60620 392.55 785 768 152.5
B 4 170 20784 131.28 785 768 152.5
B 4 81 20703 130.75 785 768 152.5
C 8 128 6243 31.01 757 760 176.8
C 13 61 5785 28.42 757 760 176.8
C 1 16 4076 18.75 757 760 176.8
D 13 105 2740927 15646.25 709 685 175.1
D 2 63 993093 5666.46 709 685 175.1
D 2 152 163123 927.49 709 685 175.1

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