ASTROSAT CZTI

Data Quality Report

Orbit 25664

Creation date: 2024-06-27T19:20:09.654208
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/AS1A09_016T03_9000003740_25664cztM0_level2.evt modeM0/AS1A09_016T03_9000003740_25664cztM0_level2_quad_clean.evt
Size (bytes)103,760,64022,999,680
Size99.0 MB 21.9 MB
Events in quadrant A701,379156,316
Events in quadrant B692,094160,325
Events in quadrant C687,975148,761
Events in quadrant D977,683140,964

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028100
B027530
C027500
D037760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A119010.084034%
B118950.420521%
C1189131.093356%
D1189131.093356%

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 1190 1190 0 0 0.00% 0.00%
B 1189 1189 0 0 0.00% 0.00%
C 1189 1189 0 0 0.00% 0.00%
D 1189 1189 7 7 0.59% 0.59%

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 8 192 20929 569.93 173 171 36.4
A 12 96 11962 323.73 173 171 36.4
A 13 254 1877 46.84 173 171 36.4
B 0 245 5211 146.06 175 172 34.5
B 12 111 3633 100.32 175 172 34.5
B 11 111 3285 90.23 175 172 34.5
C 14 238 27659 682.23 166 168 40.3
C 5 112 5762 138.82 166 168 40.3
C 3 233 2235 51.3 166 168 40.3
D 1 52 304877 7463.86 163 159 40.8
D 8 195 52666 1286.12 163 159 40.8
D 2 234 4623 109.34 163 159 40.8

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