ASTROSAT CZTI

Data Quality Report

Orbit 30060

Creation date: 2024-06-27T20:10:27.640212
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/AS1A10_071T07_9000004322_30060cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30060cztM0_level2_quad_clean.evt
Size (bytes)542,468,16093,922,560
Size517.3 MB 89.6 MB
Events in quadrant A3,184,776612,462
Events in quadrant B5,124,201614,447
Events in quadrant C3,725,365579,940
Events in quadrant D3,943,543573,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136842
B0201162
C0152932
D0162392

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6649520.782072%
B6650811.218045%
C66501632.451128%
D66501402.105263%

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 8559 6651 1 1 0.01% 0.02%
B 8560 6652 5 5 0.06% 0.08%
C 8560 6652 47 47 0.55% 0.71%
D 8560 6652 82 82 0.96% 1.23%

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 8 192 27193 160.87 818 802 164.1
A 13 254 11349 64.29 818 802 164.1
A 3 137 8420 46.44 818 802 164.1
B 6 159 1876703 11975.57 808 787 156.6
B 5 255 37235 232.68 808 787 156.6
B 12 111 19373 118.65 808 787 156.6
C 1 90 216947 1183.27 779 784 182.7
C 15 208 170887 931.14 779 784 182.7
C 14 238 128105 696.95 779 784 182.7
D 13 104 611175 3324.57 780 762 183.6
D 8 195 127682 691.26 780 762 183.6
D 2 250 110198 596.04 780 762 183.6

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