ASTROSAT CZTI

Data Quality Report

Orbit 03315

Creation date: 2024-06-27T14:27:29.190508
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/AS1G05_241T02_9000000448_03315cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03315cztM0_level2_quad_clean.evt
Size (bytes)481,633,92077,123,520
Size459.3 MB 73.6 MB
Events in quadrant A3,002,713471,118
Events in quadrant B4,987,668475,661
Events in quadrant C3,140,205480,545
Events in quadrant D3,016,896457,046

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134084
B0192593
C0137233
D0136263

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6461500.773874%
B64611742.693082%
C6461380.588144%
D6461340.526234%

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 7656 6463 3 3 0.04% 0.05%
B 7656 6463 19 19 0.25% 0.29%
C 7656 6463 2 2 0.03% 0.03%
D 7656 6463 4 4 0.05% 0.06%

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 0 118 25632 158.34 764 746 157.2
A 8 15 18433 112.53 764 746 157.2
A 0 226 10278 60.65 764 746 157.2
B 15 204 1888445 12520.08 775 757 150.8
B 14 167 48475 316.49 775 757 150.8
B 2 249 15886 100.34 775 757 150.8
C 1 192 50690 280.32 761 766 178.1
C 8 208 49468 273.46 761 766 178.1
C 12 4 21162 114.52 761 766 178.1
D 13 223 47270 256.75 750 729 181.3
D 12 233 46870 254.55 750 729 181.3
D 2 107 20976 111.7 750 729 181.3

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