ASTROSAT CZTI

Data Quality Report

Orbit 29682

Creation date: 2024-06-27T20:06:46.851004
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_093T01_9000004274_29682cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29682cztM0_level2_quad_clean.evt
Size (bytes)928,768,320150,246,720
Size885.7 MB 143.3 MB
Events in quadrant A5,192,792979,860
Events in quadrant B5,923,123995,302
Events in quadrant C5,623,175926,159
Events in quadrant D10,615,707857,599

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231812
B0247572
C0240612
D0394632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114311130.988540%
B114321791.565780%
C114322051.793212%
D1143210869.499650%

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 12506 11432 0 0 0.00% 0.00%
B 12507 11434 51 51 0.41% 0.45%
C 12507 11434 22 22 0.18% 0.19%
D 12507 11432 950 950 7.60% 8.31%

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 22260 77.29 1344 1313 271.0
A 3 137 13467 44.85 1344 1313 271.0
A 0 226 11442 37.37 1344 1313 271.0
B 0 229 528786 2080.15 1335 1300 253.6
B 10 245 48976 188.01 1335 1300 253.6
B 0 189 40813 155.82 1335 1300 253.6
C 14 238 224065 742.75 1286 1292 299.9
C 10 22 187295 620.15 1286 1292 299.9
C 7 247 70844 231.89 1286 1292 299.9
D 7 80 4046481 13493.8 1258 1223 299.8
D 8 195 758246 2525.21 1258 1223 299.8
D 7 238 698461 2325.78 1258 1223 299.8

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