ASTROSAT CZTI

Data Quality Report

Orbit 10228

Creation date: 2024-06-27T15:56:37.151576
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_099T01_9000001472_10228cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10228cztM0_level2_quad_clean.evt
Size (bytes)567,852,48080,357,760
Size541.5 MB 76.6 MB
Events in quadrant A3,920,598475,885
Events in quadrant B3,928,555497,321
Events in quadrant C3,636,090490,354
Events in quadrant D5,215,375459,431

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165413
B0164602
C0158352
D0204352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73321321.800327%
B7332841.145663%
C7332530.722859%
D73323124.255319%

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 9237 7333 102 102 1.10% 1.39%
B 9237 7333 15 15 0.16% 0.20%
C 9237 7333 0 0 0.00% 0.00%
D 9237 7333 273 273 2.96% 3.72%

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 15 223 97561 473.28 978 963 204.1
A 15 239 34661 165.1 978 963 204.1
A 3 1 12738 57.69 978 963 204.1
B 4 239 99901 553.04 931 911 179.0
B 11 51 65006 358.09 931 911 179.0
B 10 224 44924 245.89 931 911 179.0
C 14 67 9288 37.51 930 940 222.6
C 13 61 6764 26.17 930 940 222.6
C 3 202 2391 6.52 930 940 222.6
D 1 52 944873 4015.76 949 927 235.1
D 8 195 492195 2089.96 949 927 235.1
D 2 152 61370 257.14 949 927 235.1

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