ASTROSAT CZTI

Data Quality Report

Orbit 34343

Creation date: 2024-06-27T20:59:20.796568
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/AS1C07_001T05_9000004902_34343cztM0_level2.evt modeM0/AS1C07_001T05_9000004902_34343cztM0_level2_quad_clean.evt
Size (bytes)840,234,240177,396,480
Size801.3 MB 169.2 MB
Events in quadrant A4,741,7461,178,235
Events in quadrant B5,508,6231,191,473
Events in quadrant C6,326,7421,163,452
Events in quadrant D8,154,7721,107,928

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212493
B0232162
C0252792
D0314142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1057590.085106%
B105751521.437352%
C105752772.619385%
D105755315.021277%

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 13350 10577 0 0 0.00% 0.00%
B 13350 10577 97 97 0.73% 0.92%
C 13350 10577 225 225 1.69% 2.13%
D 13350 10577 468 468 3.51% 4.42%

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 10 83 37807 152.76 1208 1186 239.7
A 13 6 33453 134.6 1208 1186 239.7
A 13 254 16603 64.31 1208 1186 239.7
B 5 172 468784 2042.92 1194 1162 228.9
B 5 255 146889 636.64 1194 1162 228.9
B 4 251 79474 342.13 1194 1162 228.9
C 14 254 1195346 4477.91 1161 1168 266.7
C 15 214 437960 1637.87 1161 1168 266.7
C 15 159 51103 187.24 1161 1168 266.7
D 12 235 1856990 6583.98 1155 1122 281.9
D 8 195 865887 3067.89 1155 1122 281.9
D 12 227 355695 1257.9 1155 1122 281.9

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