ASTROSAT CZTI

Data Quality Report

Orbit 30380

Creation date: 2024-06-27T20:14:30.069784
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/AS1T04_006T01_9000004370_30380cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30380cztM0_level2_quad_clean.evt
Size (bytes)606,467,52072,823,680
Size578.4 MB 69.5 MB
Events in quadrant A4,927,130439,452
Events in quadrant B5,292,993448,041
Events in quadrant C3,449,835433,474
Events in quadrant D4,256,174429,515

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189552
B0202952
C0141672
D0169492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65185127.855170%
B65171392.132883%
C65171201.841338%
D65171732.654596%

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 7623 6518 410 410 5.38% 6.29%
B 7622 6517 5 5 0.07% 0.08%
C 7622 6517 0 0 0.00% 0.00%
D 7622 6517 114 114 1.50% 1.75%

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 14 239 1669726 10089.93 835 820 165.4
A 8 192 27346 160.37 835 820 165.4
A 13 254 13346 75.73 835 820 165.4
B 6 159 1862666 11638.71 845 827 160.0
B 0 190 46622 286.27 845 827 160.0
B 5 255 25996 157.34 845 827 160.0
C 14 238 142080 746.72 813 819 189.2
C 3 233 102007 534.89 813 819 189.2
C 14 254 16475 82.76 813 819 189.2
D 2 250 359507 1863.74 816 796 192.5
D 13 104 340607 1765.55 816 796 192.5
D 8 195 173269 896.11 816 796 192.5

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