ASTROSAT CZTI

Data Quality Report

Orbit 33602

Creation date: 2024-06-27T20:50:40.251727
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_9000004808_33602cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33602cztM0_level2_quad_clean.evt
Size (bytes)547,139,52066,363,840
Size521.8 MB 63.3 MB
Events in quadrant A3,706,565395,762
Events in quadrant B4,749,371394,512
Events in quadrant C3,490,297403,475
Events in quadrant D4,210,870389,468

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150303
B0180692
C0139152
D0166172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61062023.308221%
B61065428.876515%
C6106641.048149%
D6106901.473960%

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 8882 6108 135 135 1.52% 2.21%
B 8882 6108 413 413 4.65% 6.76%
C 8882 6108 55 55 0.62% 0.90%
D 8882 6108 75 75 0.84% 1.23%

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 15 169 1003773 7221.04 694 680 138.9
A 7 191 13572 92.81 694 680 138.9
A 13 254 9277 61.89 694 680 138.9
B 5 172 1763949 13273.11 682 663 132.8
B 4 251 103345 772.94 682 663 132.8
B 15 222 68042 507.19 682 663 132.8
C 3 233 327429 2024.14 690 693 161.4
C 15 214 262030 1618.99 690 693 161.4
C 0 10 195120 1204.48 690 693 161.4
D 8 195 986159 5794.31 688 668 170.1
D 2 250 194292 1138.43 688 668 170.1
D 2 120 160415 939.25 688 668 170.1

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