ASTROSAT CZTI

Data Quality Report

Orbit 20524

Creation date: 2024-06-27T18:16:23.903974
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/AS1A05_115T03_9000003032_20524cztM0_level2.evt modeM0/AS1A05_115T03_9000003032_20524cztM0_level2_quad_clean.evt
Size (bytes)486,002,88096,710,400
Size463.5 MB 92.2 MB
Events in quadrant A3,169,565645,627
Events in quadrant B3,497,362660,554
Events in quadrant C3,213,471616,985
Events in quadrant D4,414,384569,685

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133332
B0143433
C0133982
D0172592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6250430.688000%
B6249590.944151%
C6249781.248200%
D62494056.481037%

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 7585 6250 0 0 0.00% 0.00%
B 7584 6249 3 3 0.04% 0.05%
C 7584 6249 0 0 0.00% 0.00%
D 7584 6249 372 372 4.91% 5.95%

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 2 79 10599 59.56 819 804 164.4
A 0 226 7275 39.35 819 804 164.4
A 12 194 6143 32.47 819 804 164.4
B 0 189 136157 888.97 821 803 152.3
B 0 219 52454 339.23 821 803 152.3
B 0 190 34773 223.11 821 803 152.3
C 14 238 124050 671.03 788 796 183.7
C 0 207 10253 51.49 788 796 183.7
C 13 61 5773 27.1 788 796 183.7
D 1 52 621399 3302.56 763 740 187.9
D 5 222 525147 2790.4 763 740 187.9
D 2 184 65794 346.15 763 740 187.9

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