ASTROSAT CZTI

Data Quality Report

Orbit 09229

Creation date: 2024-06-27T15:42:59.917168
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/AS1A03_051T01_9000001288_09229cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09229cztM0_level2_quad_clean.evt
Size (bytes)699,802,560101,744,640
Size667.4 MB 97.0 MB
Events in quadrant A7,083,740621,191
Events in quadrant B4,751,920626,526
Events in quadrant C4,105,419610,236
Events in quadrant D4,640,188595,855

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01860
B01860
C01860
D01860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272623
B0199972
C0184192
D0200442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A90356877.603763%
B90351071.184283%
C9035410.453791%
D90351561.726619%

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 10720 9037 446 446 4.16% 4.94%
B 10720 9037 23 23 0.21% 0.25%
C 10720 9037 0 0 0.00% 0.00%
D 10720 9037 75 75 0.70% 0.83%

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 1536717 7171.75 1048 1030 214.1
A 15 174 1006204 4694.22 1048 1030 214.1
A 1 162 152308 706.48 1048 1030 214.1
B 8 234 186942 886.76 1090 1065 209.6
B 0 214 87760 413.59 1090 1065 209.6
B 6 51 58890 275.86 1090 1065 209.6
C 14 67 14110 53.84 1044 1047 242.6
C 3 233 10531 39.09 1044 1047 242.6
C 13 61 7872 28.13 1044 1047 242.6
D 7 71 209823 807.64 1046 1013 258.5
D 1 52 152846 587.26 1046 1013 258.5
D 5 97 106396 407.6 1046 1013 258.5

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