ASTROSAT CZTI

Data Quality Report

Orbit 22593

Creation date: 2024-06-27T18:43:18.221138
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/AS1C05_001T01_9000003354_22593cztM0_level2.evt modeM0/AS1C05_001T01_9000003354_22593cztM0_level2_quad_clean.evt
Size (bytes)478,575,360130,230,720
Size456.4 MB 124.2 MB
Events in quadrant A3,033,530913,031
Events in quadrant B3,673,028910,268
Events in quadrant C3,106,124861,465
Events in quadrant D4,274,618841,479

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129261
B0149201
C0130101
D0167121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5988430.718103%
B59891432.387711%
C5989781.302388%
D59882383.974616%

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 7243 5989 0 0 0.00% 0.00%
B 7244 5990 49 49 0.68% 0.82%
C 7244 5990 0 0 0.00% 0.00%
D 7243 5989 208 208 2.87% 3.47%

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 10751 64.49 785 773 154.7
A 0 226 6913 39.68 785 773 154.7
A 3 137 5927 33.31 785 773 154.7
B 15 33 245452 1730.23 771 755 141.4
B 15 35 121290 852.29 771 755 141.4
B 0 229 103643 727.51 771 755 141.4
C 10 222 123756 734.9 733 738 167.4
C 14 238 119169 707.49 733 738 167.4
C 13 61 5251 26.96 733 738 167.4
D 1 52 1064849 5946.66 744 723 178.9
D 15 0 96899 537.46 744 723 178.9
D 12 227 87593 485.45 744 723 178.9

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