ASTROSAT CZTI

Data Quality Report

Orbit 28319

Creation date: 2024-06-27T19:50:26.480395
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_102T10_9000004080_28319cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28319cztM0_level2_quad_clean.evt
Size (bytes)549,072,00088,899,840
Size523.6 MB 84.8 MB
Events in quadrant A3,137,197564,226
Events in quadrant B3,721,225573,472
Events in quadrant C3,148,326552,113
Events in quadrant D6,155,150522,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139290
B0154380
C0139260
D0230190

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6877670.974262%
B68771572.282972%
C6877791.148757%
D68774466.485386%

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 7257 6878 0 0 0.00% 0.00%
B 7257 6878 57 57 0.79% 0.83%
C 7257 6878 0 0 0.00% 0.00%
D 7257 6877 382 382 5.26% 5.55%

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 13 254 12068 69.07 811 794 163.2
A 3 137 8131 44.95 811 794 163.2
A 0 226 7000 38.02 811 794 163.2
B 10 245 424182 2718.59 802 780 155.7
B 4 200 43551 274.63 802 780 155.7
B 10 246 43395 273.62 802 780 155.7
C 14 238 124112 678.31 774 778 181.8
C 13 61 5276 24.74 774 778 181.8
C 3 233 4122 18.39 774 778 181.8
D 1 52 2414424 13207.83 763 740 182.7
D 8 195 335177 1830.06 763 740 182.7
D 2 250 232527 1268.35 763 740 182.7

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