ASTROSAT CZTI

Data Quality Report

Orbit 19034

Creation date: 2024-06-27T17:58:20.899408
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/AS1A05_046T01_9000002834_19034cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19034cztM0_level2_quad_clean.evt
Size (bytes)504,420,480104,480,640
Size481.1 MB 99.6 MB
Events in quadrant A3,305,252686,388
Events in quadrant B3,701,341708,819
Events in quadrant C3,442,439675,878
Events in quadrant D4,384,219637,552

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137692
B0150902
C0139802
D0173032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6528390.597426%
B65281091.669730%
C6528650.995711%
D65282704.136029%

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 7878 6529 0 0 0.00% 0.00%
B 7878 6529 20 20 0.25% 0.31%
C 7878 6529 0 0 0.00% 0.00%
D 7878 6529 182 182 2.31% 2.79%

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 6 8540 44.97 854 837 171.3
A 13 254 7754 40.38 854 837 171.3
A 0 226 7311 37.79 854 837 171.3
B 7 220 172247 1072.95 857 837 159.8
B 3 112 111208 690.88 857 837 159.8
B 0 189 38649 236.69 857 837 159.8
C 14 238 131617 676.96 832 839 193.2
C 3 233 41553 210.75 832 839 193.2
C 9 15 22544 112.35 832 839 193.2
D 7 238 1234044 6167.12 819 797 200.0
D 2 234 30821 150.14 819 797 200.0
D 1 52 18696 89.51 819 797 200.0

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