ASTROSAT CZTI

Data Quality Report

Orbit 29034

Creation date: 2024-06-27T19:59:26.929500
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/AS1A10_123T02_9000004160_29034cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29034cztM0_level2_quad_clean.evt
Size (bytes)539,907,840107,974,080
Size514.9 MB 103.0 MB
Events in quadrant A3,288,388725,748
Events in quadrant B3,357,891745,068
Events in quadrant C4,352,047692,651
Events in quadrant D4,917,351658,153

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141272
B0142842
C0171392
D0191722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6420640.996885%
B6421781.214764%
C64202924.548287%
D64204096.370717%

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 7570 6421 0 0 0.00% 0.00%
B 7571 6422 0 0 0.00% 0.00%
C 7570 6421 10 10 0.13% 0.16%
D 7570 6421 173 173 2.29% 2.69%

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 13 254 9885 53.66 851 836 168.6
A 3 137 8098 43.06 851 836 168.6
A 0 226 7204 37.76 851 836 168.6
B 10 245 48545 305.32 840 822 156.3
B 12 111 19163 117.34 840 822 156.3
B 11 111 17622 107.48 840 822 156.3
C 3 233 1030730 5467.95 812 818 188.4
C 14 238 129555 683.48 812 818 188.4
C 2 114 15090 75.77 812 818 188.4
D 1 52 1489062 7916.39 807 787 188.0
D 8 195 250880 1330.29 807 787 188.0
D 7 80 74821 393.8 807 787 188.0

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