ASTROSAT CZTI

Data Quality Report

Orbit 08525

Creation date: 2024-06-27T15:33:51.452572
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/AS1G07_060T01_9000001200_08525cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08525cztM0_level2_quad_clean.evt
Size (bytes)405,953,28083,983,680
Size387.1 MB 80.1 MB
Events in quadrant A2,887,917532,797
Events in quadrant B3,279,778541,955
Events in quadrant C2,829,531529,763
Events in quadrant D2,876,202506,867

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126583
B0137272
C0126392
D0129792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6187260.420236%
B6187821.325360%
C6187120.193955%
D6187150.242444%

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 7512 6189 0 0 0.00% 0.00%
B 7512 6189 45 45 0.60% 0.73%
C 7512 6189 0 0 0.00% 0.00%
D 7512 6189 8 8 0.11% 0.13%

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 15 236 7226 42.72 746 731 152.0
A 0 226 6827 40.1 746 731 152.0
A 8 5 6733 39.48 746 731 152.0
B 10 16 238752 1680.63 750 733 141.6
B 0 214 42703 296.35 750 733 141.6
B 5 255 35951 248.67 750 733 141.6
C 13 61 5700 29.53 724 727 168.4
C 8 222 2462 10.3 724 727 168.4
C 3 202 1844 6.63 724 727 168.4
D 1 52 88511 504.63 711 692 174.0
D 9 64 47820 270.81 711 692 174.0
D 2 234 18078 99.9 711 692 174.0

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