ASTROSAT CZTI

Data Quality Report

Orbit 17092

Creation date: 2024-06-27T17:31:57.121484
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_004T06_9000002536_17092cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17092cztM0_level2_quad_clean.evt
Size (bytes)437,639,04098,858,880
Size417.4 MB 94.3 MB
Events in quadrant A3,111,788645,777
Events in quadrant B3,416,460657,907
Events in quadrant C3,198,505630,136
Events in quadrant D3,089,673611,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135442
B0143622
C0136302
D0136372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6431460.715285%
B64321071.663557%
C6432871.352612%
D6432420.652985%

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 8796 6432 3 3 0.03% 0.05%
B 8797 6433 28 28 0.32% 0.44%
C 8797 6434 0 0 0.00% 0.00%
D 8797 6433 5 5 0.06% 0.08%

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 4 2 26206 156.96 802 785 162.0
A 0 226 7032 38.57 802 785 162.0
A 12 194 6001 32.21 802 785 162.0
B 15 32 162256 1072.3 807 787 150.6
B 0 197 36572 237.64 807 787 150.6
B 0 229 22786 146.09 807 787 150.6
C 14 238 120126 654.71 781 786 182.3
C 3 233 16230 84.73 781 786 182.3
C 9 54 10606 53.87 781 786 182.3
D 1 52 59063 306.93 785 764 189.9
D 2 234 25428 129.85 785 764 189.9
D 5 222 21007 106.57 785 764 189.9

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