ASTROSAT CZTI

Data Quality Report

Orbit 08615

Creation date: 2024-06-27T15:35:00.706735
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/AS1A03_036T01_9000001204_08615cztM0_level2.evt modeM0/AS1A03_036T01_9000001204_08615cztM0_level2_quad_clean.evt
Size (bytes)482,863,68083,194,560
Size460.5 MB 79.3 MB
Events in quadrant A3,329,669505,202
Events in quadrant B4,177,813509,896
Events in quadrant C3,228,396504,529
Events in quadrant D3,386,878486,844

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151993
B0174662
C0150772
D0156192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73621141.548492%
B73623865.243140%
C7362640.869329%
D7362921.249660%

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 8882 7363 0 0 0.00% 0.00%
B 8882 7363 200 200 2.25% 2.72%
C 8882 7364 0 0 0.00% 0.00%
D 8882 7364 13 13 0.15% 0.18%

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 8 5 77128 446.08 839 816 171.1
A 13 14 12998 71.21 839 816 171.1
A 0 226 7900 41.41 839 816 171.1
B 10 16 705081 4400.56 839 817 160.0
B 0 214 85748 530.69 839 817 160.0
B 10 246 45753 280.78 839 817 160.0
C 14 64 8381 39.83 823 825 189.7
C 13 61 6332 29.03 823 825 189.7
C 8 222 5153 22.81 823 825 189.7
D 2 136 124179 565.02 809 787 218.4
D 1 52 63281 286.16 809 787 218.4
D 2 14 41183 184.97 809 787 218.4

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