ASTROSAT CZTI

Data Quality Report

Orbit 28167

Creation date: 2024-06-27T19:48:47.014484
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_073T05_9000004068_28167cztM0_level2.evt modeM0/AS1A10_073T05_9000004068_28167cztM0_level2_quad_clean.evt
Size (bytes)537,266,88098,553,600
Size512.4 MB 94.0 MB
Events in quadrant A3,076,989667,826
Events in quadrant B5,320,952646,693
Events in quadrant C3,091,889632,176
Events in quadrant D4,361,473605,648

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129260
B0197910
C0130090
D0171550

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6188190.307046%
B618993615.123606%
C6189530.856358%
D61892283.683955%

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 7479 6189 0 0 0.00% 0.00%
B 7480 6190 720 720 9.63% 11.63%
C 7480 6190 0 0 0.00% 0.00%
D 7480 6190 184 184 2.46% 2.97%

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 13 254 9670 57.0 794 779 156.0
A 15 174 9314 54.72 794 779 156.0
A 3 137 7085 40.43 794 779 156.0
B 10 245 2382963 17302.01 738 723 137.7
B 0 230 21404 150.2 738 723 137.7
B 12 111 16216 112.52 738 723 137.7
C 14 238 124286 715.56 751 758 172.6
C 3 233 38232 217.07 751 758 172.6
C 13 61 5323 26.44 751 758 172.6
D 1 52 825883 4737.89 743 725 174.2
D 8 195 361437 2071.14 743 725 174.2
D 7 223 152624 872.17 743 725 174.2

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