ASTROSAT CZTI

Data Quality Report

Orbit 35527

Creation date: 2024-06-27T21:14:39.478263
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_097T09_9000005086_35527cztM0_level2.evt modeM0/AS1A11_097T09_9000005086_35527cztM0_level2_quad_clean.evt
Size (bytes)433,520,64065,632,320
Size413.4 MB 62.6 MB
Events in quadrant A2,961,834397,611
Events in quadrant B3,097,619401,698
Events in quadrant C3,472,860393,894
Events in quadrant D3,191,303377,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125273
B0130232
C0137512
D0135342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A596680.134093%
B5966631.055984%
C59661131.894066%
D5966590.988937%

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 8983 5968 0 0 0.00% 0.00%
B 8983 5968 29 29 0.32% 0.49%
C 8983 5968 81 81 0.90% 1.36%
D 8983 5968 41 41 0.46% 0.69%

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 139066 989.24 689 676 139.9
A 15 169 121722 865.26 689 676 139.9
A 9 143 13918 94.66 689 676 139.9
B 0 190 130649 971.02 684 664 133.9
B 5 172 114498 850.37 684 664 133.9
B 5 236 111823 830.39 684 664 133.9
C 0 10 371691 2351.39 668 672 157.8
C 15 214 246669 1559.04 668 672 157.8
C 0 207 138351 872.56 668 672 157.8
D 8 195 199461 1218.04 667 649 163.2
D 2 250 194203 1185.82 667 649 163.2
D 10 199 61708 374.08 667 649 163.2

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