ASTROSAT CZTI

Data Quality Report

Orbit 23363

Creation date: 2024-06-27T18:53:20.671892
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/AS1A07_138T06_9000003456_23363cztM0_level2.evt modeM0/AS1A07_138T06_9000003456_23363cztM0_level2_quad_clean.evt
Size (bytes)176,636,16025,395,840
Size168.5 MB 24.2 MB
Events in quadrant A1,108,213157,320
Events in quadrant B1,149,738162,336
Events in quadrant C1,793,695152,439
Events in quadrant D1,161,971153,281

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044241
B046191
C067531
D046131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19641105.600815%
B19641276.466395%
C196420310.336049%
D1964984.989817%

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 3209 1964 0 0 0.00% 0.00%
B 3209 1964 0 0 0.00% 0.00%
C 3209 1964 32 32 1.00% 1.63%
D 3209 1964 1 1 0.03% 0.05%

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 3361 52.18 287 281 59.0
A 0 226 2484 37.32 287 281 59.0
A 3 137 2358 35.19 287 281 59.0
B 0 190 28564 518.36 281 273 54.6
B 0 229 8369 148.34 281 273 54.6
B 0 245 6297 110.37 281 273 54.6
C 0 239 684304 10936.21 269 270 62.5
C 14 238 43119 685.06 269 270 62.5
C 7 247 8008 123.71 269 270 62.5
D 1 52 60664 867.47 282 272 69.6
D 9 85 13772 193.91 282 272 69.6
D 12 233 12365 173.7 282 272 69.6

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