ASTROSAT CZTI

Data Quality Report

Orbit 14418

Creation date: 2024-06-27T16:54:53.410303
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/AS1A04_201T03_9000002128_14418cztM0_level2.evt modeM0/AS1A04_201T03_9000002128_14418cztM0_level2_quad_clean.evt
Size (bytes)462,418,56071,749,440
Size441.0 MB 68.4 MB
Events in quadrant A3,202,640439,529
Events in quadrant B3,407,414444,237
Events in quadrant C3,675,080429,667
Events in quadrant D3,289,327417,292

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132633
B0138742
C0147502
D0138562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63241031.628716%
B63241682.656546%
C6324821.296648%
D6324851.344086%

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 7435 6326 0 0 0.00% 0.00%
B 7435 6325 16 16 0.22% 0.25%
C 7435 6326 0 0 0.00% 0.00%
D 7435 6326 12 12 0.16% 0.19%

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 12 189 22710 133.24 820 804 164.4
A 8 15 19924 116.29 820 804 164.4
A 0 226 7297 39.49 820 804 164.4
B 0 85 44707 281.97 817 796 155.7
B 0 229 43173 272.12 817 796 155.7
B 4 173 42875 270.21 817 796 155.7
C 3 233 594958 3255.29 789 796 182.5
C 13 61 5730 27.03 789 796 182.5
C 10 22 5007 23.07 789 796 182.5
D 2 120 142052 743.85 785 768 189.9
D 5 51 49283 255.43 785 768 189.9
D 6 128 32983 169.61 785 768 189.9

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