ASTROSAT CZTI

Data Quality Report

Orbit 19644

Creation date: 2024-06-27T18:05:08.925930
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_101T10_9000002924_19644cztM0_level2.evt modeM0/AS1A05_101T10_9000002924_19644cztM0_level2_quad_clean.evt
Size (bytes)189,734,40035,349,120
Size180.9 MB 33.7 MB
Events in quadrant A950,049248,132
Events in quadrant B913,867254,427
Events in quadrant C930,944242,038
Events in quadrant D2,823,379190,195

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040491
B038821
C038911
D096711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1849422.271498%
B1849301.622499%
C1849683.677664%
D184980243.374797%

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 2804 1850 0 0 0.00% 0.00%
B 2804 1850 0 0 0.00% 0.00%
C 2804 1850 0 0 0.00% 0.00%
D 2804 1849 621 621 22.15% 33.59%

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 9 143 51204 1061.86 232 226 48.0
A 4 2 5239 104.42 232 226 48.0
A 0 226 2102 39.08 232 226 48.0
B 12 111 5281 111.87 231 226 45.2
B 11 111 4684 98.65 231 226 45.2
B 14 111 4099 85.71 231 226 45.2
C 14 238 35297 640.45 229 229 54.8
C 3 233 1835 29.33 229 229 54.8
C 13 61 1535 23.85 229 229 54.8
D 7 238 1851991 39210.81 192 186 47.2
D 1 52 241410 5107.77 192 186 47.2
D 2 234 4457 90.44 192 186 47.2

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