ASTROSAT CZTI

Data Quality Report

Orbit 27083

Creation date: 2024-06-27T19:36:17.576121
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/AS1T03_236T01_9000003908_27083cztM0_level2.evt modeM0/AS1T03_236T01_9000003908_27083cztM0_level2_quad_clean.evt
Size (bytes)548,012,160111,683,520
Size522.6 MB 106.5 MB
Events in quadrant A3,942,854728,222
Events in quadrant B4,292,179754,302
Events in quadrant C3,386,398760,754
Events in quadrant D4,553,229704,529

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156720
B0168600
C0139430
D0178890

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62281862.986513%
B62293185.105153%
C62281492.392421%
D62282924.688504%

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 8908 6230 89 89 1.00% 1.43%
B 8909 6231 162 162 1.82% 2.60%
C 8908 6230 0 0 0.00% 0.00%
D 8908 6230 183 183 2.05% 2.94%

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 14 235 698969 4261.95 826 811 163.8
A 6 16 47976 287.92 826 811 163.8
A 13 254 10314 58.01 826 811 163.8
B 0 189 857329 5464.24 832 812 156.7
B 3 112 161921 1027.81 832 812 156.7
B 0 219 20887 128.07 832 812 156.7
C 14 238 132477 682.95 831 840 192.7
C 2 16 8245 38.42 831 840 192.7
C 15 208 7098 32.47 831 840 192.7
D 1 52 1067351 5629.47 812 795 189.5
D 2 250 398330 2098.26 812 795 189.5
D 2 234 25627 131.07 812 795 189.5

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