ASTROSAT CZTI

Data Quality Report

Orbit 03671

Creation date: 2024-06-27T14:32:28.528634
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/AS1SLEW_01234_9000000477_03671cztM0_level2.evt modeM0/AS1SLEW_01234_9000000477_03671cztM0_level2_quad_clean.evt
Size (bytes)14,333,7603,254,400
Size13.7 MB 3.1 MB
Events in quadrant A106,38219,305
Events in quadrant B109,11819,750
Events in quadrant C104,53120,184
Events in quadrant D100,04719,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04150
B04280
C04160
D03990

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1483422.972973%
B1483624.324324%
C1482315.540541%
D1481711.486486%

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 148 148 0 0 0.00% 0.00%
B 148 148 0 0 0.00% 0.00%
C 148 148 0 0 0.00% 0.00%
D 148 148 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 13 164 4253 547.31 26 25 7.7
A 0 50 478 58.64 26 25 7.7
A 13 14 445 54.37 26 25 7.7
B 15 204 6208 803.19 26 25 7.7
B 14 167 637 79.5 26 25 7.7
B 12 111 469 57.68 26 25 7.7
C 9 247 434 47.9 26 26 8.5
C 13 61 219 22.66 26 26 8.5
C 3 202 75 5.75 26 26 8.5
D 14 226 294 31.01 26 25 8.7
D 0 56 94 7.95 26 25 8.7
D 0 105 92 7.72 26 25 8.7

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
Veto Counter