ASTROSAT CZTI

Data Quality Report

Orbit 08326

Creation date: 2024-06-27T15:31:01.408734
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/AS1A03_093T01_9000001156_08326cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08326cztM0_level2_quad_clean.evt
Size (bytes)106,341,12029,980,800
Size101.4 MB 28.6 MB
Events in quadrant A798,595196,882
Events in quadrant B835,302200,444
Events in quadrant C721,542198,032
Events in quadrant D749,888190,659

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034080
B034890
C033060
D033620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A164810.060680%
B164860.364078%
C164820.121359%
D164820.121359%

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 1648 1648 0 0 0.00% 0.00%
B 1648 1648 3 3 0.18% 0.18%
C 1648 1648 0 0 0.00% 0.00%
D 1648 1648 0 0 0.00% 0.00%

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 15 234 27885 661.0 195 191 41.9
A 13 251 12229 287.32 195 191 41.9
A 15 239 7105 165.02 195 191 41.9
B 0 214 69314 1767.9 192 188 39.1
B 0 219 9788 245.52 192 188 39.1
B 4 173 5812 143.83 192 188 39.1
C 9 54 4495 97.3 183 184 44.3
C 13 61 1446 28.48 183 184 44.3
C 3 202 447 5.94 183 184 44.3
D 2 152 29840 621.55 188 183 47.7
D 2 234 5749 116.65 188 183 47.7
D 2 14 2706 52.88 188 183 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