ASTROSAT CZTI

Data Quality Report

Orbit 29168

Creation date: 2024-06-27T20:01:02.330104
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_099T01_9000004184_29168cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29168cztM0_level2_quad_clean.evt
Size (bytes)504,976,32097,312,320
Size481.6 MB 92.8 MB
Events in quadrant A3,394,849643,612
Events in quadrant B3,559,137657,635
Events in quadrant C3,709,150613,562
Events in quadrant D4,205,359595,175

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140052
B0146202
C0151812
D0166962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6260651.038339%
B62601101.757188%
C62601742.779553%
D62602073.306709%

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 7630 6261 0 0 0.00% 0.00%
B 7630 6261 11 11 0.14% 0.18%
C 7630 6261 0 0 0.00% 0.00%
D 7630 6261 140 140 1.83% 2.24%

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 11369 60.15 880 866 174.6
A 3 137 8068 41.25 880 866 174.6
A 0 226 7621 38.69 880 866 174.6
B 0 183 63871 382.78 874 853 164.6
B 10 245 27039 159.06 874 853 164.6
B 12 111 19338 112.28 874 853 164.6
C 3 233 289855 1501.95 830 837 192.4
C 14 238 148623 768.0 830 837 192.4
C 14 254 19983 99.5 830 837 192.4
D 1 52 790440 4080.17 820 799 193.5
D 8 195 261762 1348.43 820 799 193.5
D 2 234 27270 136.78 820 799 193.5

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