ASTROSAT CZTI

Data Quality Report

Orbit 16219

Creation date: 2024-06-27T17:19:31.009343
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/AS1T02_110T01_9000002388_16219cztM0_level2.evt modeM0/AS1T02_110T01_9000002388_16219cztM0_level2_quad_clean.evt
Size (bytes)880,781,760144,432,000
Size840.0 MB 137.7 MB
Events in quadrant A7,524,444887,673
Events in quadrant B6,151,190897,806
Events in quadrant C5,902,271861,192
Events in quadrant D6,248,306861,056

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305793
B0263152
C0255962
D0272382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02540
B02540
C02540
D02540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125333702.952206%
B12533970.773957%
C125331030.821830%
D125331220.973430%

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 13924 12536 199 199 1.43% 1.59%
B 13924 12536 3 3 0.02% 0.02%
C 13924 12536 0 0 0.00% 0.00%
D 13924 12536 75 75 0.54% 0.60%

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 15 174 1234787 4177.66 1466 1433 295.2
A 8 247 311356 1049.78 1466 1433 295.2
A 0 253 248813 837.93 1466 1433 295.2
B 0 198 77238 269.63 1476 1438 281.1
B 0 219 64529 224.42 1476 1438 281.1
B 3 64 43692 150.3 1476 1438 281.1
C 14 238 218279 653.68 1418 1425 331.7
C 7 247 110136 327.7 1418 1425 331.7
C 0 207 26402 75.29 1418 1425 331.7
D 2 233 458861 1307.65 1441 1396 349.8
D 1 52 99464 280.32 1441 1396 349.8
D 15 0 83950 235.98 1441 1396 349.8

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