ASTROSAT CZTI

Data Quality Report

Orbit 10247

Creation date: 2024-06-27T15:57:13.847385
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_011T03_9000001476_10247cztM0_level2.evt modeM0/AS1G07_011T03_9000001476_10247cztM0_level2_quad_clean.evt
Size (bytes)481,345,92078,791,040
Size459.0 MB 75.1 MB
Events in quadrant A3,327,140491,082
Events in quadrant B3,666,298495,377
Events in quadrant C3,246,982491,370
Events in quadrant D3,909,404468,340

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01302

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01364747
B01475461
C01349733
D01561241

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0271
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62991021.619305%
B62961732.747776%
C6304991.570431%
D63031642.601936%

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 8947 6317 0 0 0.00% 0.00%
B 8947 6312 30 30 0.34% 0.48%
C 8947 6317 0 0 0.00% 0.00%
D 8947 6319 62 62 0.69% 0.98%

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 8 15 13768 75.54 856 839 171.1
A 3 1 9919 53.05 856 839 171.1
A 13 14 9388 49.95 856 839 171.1
B 10 247 171054 1060.09 852 832 160.6
B 11 51 87525 539.9 852 832 160.6
B 0 214 40646 247.95 852 832 160.6
C 0 207 14795 73.25 827 835 190.6
C 13 61 6046 27.34 827 835 190.6
C 14 234 4573 19.61 827 835 190.6
D 8 195 414444 1903.52 816 804 217.3
D 2 33 144747 662.41 816 804 217.3
D 1 52 53164 240.95 816 804 217.3

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