ASTROSAT CZTI

Data Quality Report

Orbit 06351

Creation date: 2024-06-27T15:06:03.344490
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/AS1A02_124T01_9000000842_06351cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06351cztM0_level2_quad_clean.evt
Size (bytes)407,952,00077,152,320
Size389.1 MB 73.6 MB
Events in quadrant A2,841,785481,720
Events in quadrant B2,924,088491,841
Events in quadrant C2,875,444483,385
Events in quadrant D3,306,493461,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122952
B0126331
C0124361
D0138131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5982380.635239%
B5982621.036443%
C5982360.601805%
D5982861.437646%

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 7087 5983 0 0 0.00% 0.00%
B 7087 5983 17 17 0.24% 0.28%
C 7087 5983 2 2 0.03% 0.03%
D 7087 5983 43 43 0.61% 0.72%

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 91083 640.51 697 681 141.1
A 8 15 59987 420.19 697 681 141.1
A 12 194 6792 43.3 697 681 141.1
B 4 80 80752 595.47 706 688 134.5
B 0 219 51924 381.07 706 688 134.5
B 0 228 29558 214.72 706 688 134.5
C 4 254 178975 1123.82 689 693 158.6
C 13 61 5254 28.75 689 693 158.6
C 8 222 2685 12.56 689 693 158.6
D 12 220 444684 2649.24 683 662 167.6
D 10 15 60836 359.03 683 662 167.6
D 2 14 35650 208.75 683 662 167.6

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