ASTROSAT CZTI

Data Quality Report

Orbit 29746

Creation date: 2024-06-27T20:07:22.344937
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_007T01_9000004276_29746cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29746cztM0_level2_quad_clean.evt
Size (bytes)572,987,52088,974,720
Size546.4 MB 84.9 MB
Events in quadrant A3,443,438578,062
Events in quadrant B5,429,269581,256
Events in quadrant C3,769,692558,616
Events in quadrant D4,295,436547,835

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141551
B0201361
C0152391
D0170271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6134721.173785%
B61341913.113792%
C61352063.357783%
D61351692.754686%

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 7479 6134 0 0 0.00% 0.00%
B 7479 6134 18 18 0.24% 0.29%
C 7480 6135 38 38 0.51% 0.62%
D 7480 6135 129 129 1.72% 2.10%

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 16 46149 259.31 878 865 174.6
A 12 194 12450 66.34 878 865 174.6
A 13 254 12225 65.05 878 865 174.6
B 6 159 1850571 11355.0 873 854 162.9
B 0 229 128168 781.55 873 854 162.9
B 12 111 18777 110.03 873 854 162.9
C 10 22 249595 1282.02 840 851 194.0
C 14 238 138246 708.13 840 851 194.0
C 15 208 45696 231.13 840 851 194.0
D 8 195 731940 3702.75 841 820 197.5
D 2 225 253143 1277.89 841 820 197.5
D 7 80 45496 226.26 841 820 197.5

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