ASTROSAT CZTI

Data Quality Report

Orbit 32150

Creation date: 2024-06-27T20:37:02.849019
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_053T11_9000004688_32150cztM0_level2.evt modeM0/AS1A10_053T11_9000004688_32150cztM0_level2_quad_clean.evt
Size (bytes)657,400,32079,669,440
Size626.9 MB 76.0 MB
Events in quadrant A3,401,155508,766
Events in quadrant B6,178,675493,366
Events in quadrant C5,220,783480,578
Events in quadrant D4,683,877489,723

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136552
B0224492
C0198572
D0185512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6308530.840203%
B63084647.355739%
C63084677.403297%
D6308901.426760%

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 7648 6309 0 0 0.00% 0.00%
B 7648 6309 193 193 2.52% 3.06%
C 7648 6309 209 209 2.73% 3.31%
D 7648 6309 35 35 0.46% 0.55%

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 12 189 31170 177.04 871 858 171.2
A 13 254 11542 62.4 871 858 171.2
A 13 6 8941 47.21 871 858 171.2
B 6 159 1638116 10385.49 853 834 157.7
B 10 245 1099813 6970.96 853 834 157.7
B 0 190 69399 434.92 853 834 157.7
C 3 233 1264679 6606.1 833 844 191.3
C 0 10 499150 2604.66 833 844 191.3
C 14 238 149988 779.58 833 844 191.3
D 8 195 1283740 6377.82 856 837 201.2
D 12 233 75863 372.98 856 837 201.2
D 12 218 45508 222.08 856 837 201.2

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