ASTROSAT CZTI

Data Quality Report

Orbit 10545

Creation date: 2024-06-27T16:00:44.849162
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/AS1G07_079T01_9000001528_10545cztM0_level2.evt modeM0/AS1G07_079T01_9000001528_10545cztM0_level2_quad_clean.evt
Size (bytes)1,440,892,800208,635,840
Size1.3 GB 199.0 MB
Events in quadrant A10,578,3441,246,016
Events in quadrant B11,620,0631,277,833
Events in quadrant C8,368,2761,280,833
Events in quadrant D11,799,5571,216,200

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0438074
B0468833
C0384593
D0472633

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03840
B03840
C03840
D03840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A188234752.523508%
B188239174.871700%
C188232551.354726%
D188234652.470382%

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 20498 18826 113 113 0.55% 0.60%
B 20498 18826 417 417 2.03% 2.22%
C 20498 18826 3 3 0.01% 0.02%
D 20498 18826 175 175 0.85% 0.93%

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 15 239 2010349 4515.44 2182 2130 444.7
A 1 162 55706 120.46 2182 2130 444.7
A 8 5 36135 76.46 2182 2130 444.7
B 4 239 2434488 5836.41 2176 2125 416.8
B 11 51 346115 825.4 2176 2125 416.8
B 0 214 133119 314.32 2176 2125 416.8
C 14 234 22670 41.08 2138 2147 499.6
C 13 61 15849 27.42 2138 2147 499.6
C 8 128 6945 9.6 2138 2147 499.6
D 2 16 1556649 3056.25 2113 2053 508.7
D 8 195 1116722 2191.37 2113 2053 508.7
D 5 222 568033 1112.68 2113 2053 508.7

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