ASTROSAT CZTI

Data Quality Report

Orbit 37606

Creation date: 2024-06-27T21:42:06.273722
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/AS1T05_053T01_9000005338_37606cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37606cztM0_level2_quad_clean.evt
Size (bytes)103,219,20024,482,880
Size98.4 MB 23.3 MB
Events in quadrant A724,701167,402
Events in quadrant B851,447167,335
Events in quadrant C706,301162,984
Events in quadrant D761,536154,871

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028761
B033681
C027911
D030321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1170110.940171%
B1170161.367521%
C1170383.247863%
D1170272.307692%

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 1170 1170 8 8 0.68% 0.68%
B 1169 1169 15 15 1.28% 1.28%
C 1170 1170 44 44 3.76% 3.76%
D 1170 1170 28 28 2.39% 2.39%

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 10 83 123906 3949.02 146 143 31.3
A 13 6 10446 328.75 146 143 31.3
A 6 10 10127 318.57 146 143 31.3
B 4 171 87170 2996.86 143 141 29.0
B 5 172 61096 2099.0 143 141 29.0
B 0 230 39757 1364.18 143 141 29.0
C 0 10 118761 3573.16 134 135 33.2
C 15 214 53679 1612.81 134 135 33.2
C 14 254 7301 215.85 134 135 33.2
D 12 233 67254 1922.84 137 133 34.9
D 10 199 40124 1145.64 137 133 34.9
D 2 249 36468 1040.9 137 133 34.9

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