ASTROSAT CZTI

Data Quality Report

Orbit 05516

Creation date: 2024-06-27T14:56:11.112160
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/AS1G06_168T23_9000000706_05516cztM0_level2.evt modeM0/AS1G06_168T23_9000000706_05516cztM0_level2_quad_clean.evt
Size (bytes)26,579,5206,419,520
Size25.3 MB 6.1 MB
Events in quadrant A183,62041,009
Events in quadrant B212,81839,900
Events in quadrant C168,60239,378
Events in quadrant D210,33438,705

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08271
B08790
C07760
D08760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38771.808786%
B38700.000000%
C38700.000000%
D38720.516796%

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 387 387 5 5 1.29% 1.29%
B 387 387 0 0 0.00% 0.00%
C 387 387 0 0 0.00% 0.00%
D 387 387 1 1 0.26% 0.26%

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 0 50 21167 1969.99 42 41 10.7
A 0 226 450 38.14 42 41 10.7
A 12 194 413 34.69 42 41 10.7
B 11 51 22044 2072.05 43 42 10.6
B 0 219 7567 708.67 43 42 10.6
B 4 81 7214 675.43 43 42 10.6
C 1 16 2406 197.1 41 41 12.0
C 9 247 993 79.34 41 41 12.0
C 8 128 892 70.92 41 41 12.0
D 2 152 20669 1674.67 41 39 12.3
D 8 195 15240 1233.96 41 39 12.3
D 13 172 6949 560.93 41 39 12.3

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