ASTROSAT CZTI

Data Quality Report

Orbit 08053

Creation date: 2024-06-27T15:27:20.585209
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/AS1A02_055T01_9000001114_08053cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08053cztM0_level2_quad_clean.evt
Size (bytes)113,886,72031,095,360
Size108.6 MB 29.7 MB
Events in quadrant A758,055199,949
Events in quadrant B849,644206,929
Events in quadrant C748,979209,410
Events in quadrant D971,329197,481

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036272
B037681
C036021
D042051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1740563.218391%
B1740603.448276%
C1740331.896552%
D1740472.701149%

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 1740 1740 0 0 0.00% 0.00%
B 1740 1740 0 0 0.00% 0.00%
C 1740 1740 0 0 0.00% 0.00%
D 1740 1740 9 9 0.52% 0.52%

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 4 2 7320 169.98 195 190 41.9
A 0 226 1769 37.64 195 190 41.9
A 12 194 1726 36.62 195 190 41.9
B 4 81 70499 1747.52 197 192 40.2
B 5 255 11548 282.26 197 192 40.2
B 12 111 4288 101.81 197 192 40.2
C 1 16 4227 88.31 190 191 45.7
C 13 61 1466 27.9 190 191 45.7
C 8 222 746 12.14 190 191 45.7
D 13 105 103425 2165.3 186 180 47.7
D 4 95 65627 1372.58 186 180 47.7
D 1 52 47035 982.66 186 180 47.7

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