ASTROSAT CZTI

Data Quality Report

Orbit 09309

Creation date: 2024-06-27T15:44:13.413283
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_076T03_9000001314_09309cztM0_level2.evt modeM0/AS1G07_076T03_9000001314_09309cztM0_level2_quad_clean.evt
Size (bytes)1,307,586,240244,753,920
Size1.2 GB 233.4 MB
Events in quadrant A10,884,8751,509,484
Events in quadrant B9,233,1671,550,135
Events in quadrant C9,128,6821,531,984
Events in quadrant D9,041,7661,485,356

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03962
B03962
C03964
D03960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0470
B0470
C0470
D0470

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044931166
B040522130
C040666141
D041043131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193993882.000103%
B194051870.963669%
C194001200.618557%
D194051220.628704%

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 24177 19468 164 164 0.68% 0.84%
B 24177 19470 5 5 0.02% 0.03%
C 24177 19469 13 13 0.05% 0.07%
D 24177 19470 38 38 0.16% 0.20%

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 5 886198 1899.62 2333 2289 465.3
A 5 16 745956 1598.22 2333 2289 465.3
A 1 162 163093 345.59 2333 2289 465.3
B 12 111 51893 111.45 2358 2303 444.9
B 11 111 41841 88.86 2358 2303 444.9
B 14 111 32988 68.96 2358 2303 444.9
C 14 234 105961 197.69 2286 2302 524.4
C 9 68 54798 100.11 2286 2302 524.4
C 14 67 18741 31.35 2286 2302 524.4
D 1 52 334208 581.7 2260 2207 570.7
D 2 14 74793 127.18 2260 2207 570.7
D 2 234 62580 105.78 2260 2207 570.7

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