ASTROSAT CZTI

Data Quality Report

Orbit 30076

Creation date: 2024-06-27T20:10:46.028945
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/AS1A10_071T10_9000004328_30076cztM0_level2.evt modeM0/AS1A10_071T10_9000004328_30076cztM0_level2_quad_clean.evt
Size (bytes)201,395,52043,462,080
Size192.1 MB 41.4 MB
Events in quadrant A1,096,444302,159
Events in quadrant B1,634,485307,361
Events in quadrant C1,183,478288,893
Events in quadrant D2,043,954268,726

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044111
B062241
C048181
D074481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2044261.272016%
B2044432.103718%
C2044502.446184%
D204421310.420744%

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 3149 2045 1 1 0.03% 0.05%
B 3149 2045 0 0 0.00% 0.00%
C 3149 2045 0 0 0.00% 0.00%
D 3149 2045 197 197 6.26% 9.63%

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 8 192 13536 229.02 280 276 57.9
A 13 254 3772 60.38 280 276 57.9
A 3 137 2756 42.83 280 276 57.9
B 6 159 528883 9620.72 278 272 54.9
B 12 111 6355 110.71 278 272 54.9
B 11 111 5880 102.07 278 272 54.9
C 3 233 88117 1361.03 268 270 64.5
C 14 238 44225 681.0 268 270 64.5
C 2 114 4788 70.0 268 270 64.5
D 13 104 854050 13284.13 261 255 64.3
D 2 153 85014 1318.76 261 255 64.3
D 2 250 40964 633.39 261 255 64.3

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