ASTROSAT CZTI

Data Quality Report

Orbit 32353

Creation date: 2024-06-27T20:39:15.447137
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/AS1A09_131T01_9000004702_32353cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32353cztM0_level2_quad_clean.evt
Size (bytes)606,312,000129,957,120
Size578.2 MB 123.9 MB
Events in quadrant A3,239,697898,873
Events in quadrant B5,393,254905,104
Events in quadrant C4,252,453864,858
Events in quadrant D5,061,492838,107

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136352
B0206511
C0169141
D0191771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6149280.455359%
B61492243.642869%
C61494387.123109%
D61493315.382989%

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 7454 6150 0 0 0.00% 0.00%
B 7454 6150 77 77 1.03% 1.25%
C 7454 6150 61 61 0.82% 0.99%
D 7454 6150 225 225 3.02% 3.66%

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 206205 1328.87 778 764 154.6
A 13 6 16230 100.04 778 764 154.6
A 13 254 12678 77.06 778 764 154.6
B 6 159 1883112 13128.1 775 756 143.4
B 5 172 270975 1884.59 775 756 143.4
B 0 245 37173 253.98 775 756 143.4
C 0 10 775948 4549.37 741 745 170.4
C 3 233 187984 1098.83 741 745 170.4
C 14 238 184582 1078.87 741 745 170.4
D 8 195 1079997 6161.16 747 730 175.2
D 13 249 334210 1903.72 747 730 175.2
D 7 38 283999 1617.08 747 730 175.2

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