ASTROSAT CZTI

Data Quality Report

Orbit 33519

Creation date: 2024-06-27T20:49:42.851542
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/AS1A11_060T01_9000004804_33519cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33519cztM0_level2_quad_clean.evt
Size (bytes)501,621,12081,213,120
Size478.4 MB 77.5 MB
Events in quadrant A2,591,354537,731
Events in quadrant B4,458,732515,659
Events in quadrant C3,455,800514,230
Events in quadrant D4,302,384496,041

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114342
B0170951
C0139931
D0165951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A565870.123719%
B56584898.642630%
C5658711.254860%
D56581402.474373%

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 7240 5659 0 0 0.00% 0.00%
B 7239 5658 323 323 4.46% 5.71%
C 7240 5659 62 62 0.86% 1.10%
D 7240 5659 114 114 1.57% 2.01%

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 9626 66.76 668 656 134.4
A 3 137 6764 45.46 668 656 134.4
A 13 6 6007 39.82 668 656 134.4
B 5 255 1320501 10542.49 646 629 125.2
B 5 172 568999 4539.86 646 629 125.2
B 12 111 15448 118.37 646 629 125.2
C 3 233 308508 2071.73 638 643 148.6
C 15 214 263337 1767.76 638 643 148.6
C 0 10 194398 1303.84 638 643 148.6
D 8 195 1238299 7942.63 636 619 155.8
D 13 249 237812 1522.15 636 619 155.8
D 2 250 200980 1285.79 636 619 155.8

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