ASTROSAT CZTI

Data Quality Report

Orbit 23433

Creation date: 2024-06-27T18:54:13.554439
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/AS1A07_138T01_9000003466_23433cztM0_level2.evt modeM0/AS1A07_138T01_9000003466_23433cztM0_level2_quad_clean.evt
Size (bytes)495,665,28095,414,400
Size472.7 MB 91.0 MB
Events in quadrant A3,438,760628,671
Events in quadrant B3,564,945632,215
Events in quadrant C3,434,612600,803
Events in quadrant D4,144,153586,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139892
B0144452
C0139392
D0161922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6323781.233592%
B6323831.312668%
C6323891.407560%
D63231812.862565%

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 7618 6323 0 0 0.00% 0.00%
B 7618 6323 2 2 0.03% 0.03%
C 7618 6323 0 0 0.00% 0.00%
D 7618 6323 133 133 1.75% 2.10%

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 13 254 9950 50.9 892 876 178.3
A 0 226 7854 39.14 892 876 178.3
A 3 137 7080 34.8 892 876 178.3
B 0 189 92109 562.21 870 852 162.3
B 0 229 43765 264.37 870 852 162.3
B 12 111 18772 110.4 870 852 162.3
C 14 238 136842 708.01 839 848 192.1
C 7 247 17254 85.41 839 848 192.1
C 13 61 5777 25.66 839 848 192.1
D 1 52 847132 4138.06 856 834 204.5
D 2 234 26653 126.24 856 834 204.5
D 9 85 15412 71.28 856 834 204.5

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