ASTROSAT CZTI

Data Quality Report

Orbit 25029

Creation date: 2024-06-27T19:12:57.996495
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/AS1A07_134T03_9000003670_25029cztM0_level2.evt modeM0/AS1A07_134T03_9000003670_25029cztM0_level2_quad_clean.evt
Size (bytes)483,076,80094,055,040
Size460.7 MB 89.7 MB
Events in quadrant A3,246,768603,964
Events in quadrant B3,378,214618,065
Events in quadrant C3,352,858593,222
Events in quadrant D4,208,503577,297

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137152
B0140792
C0139042
D0169842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6533340.520435%
B6533771.178632%
C6533991.515383%
D6533701.071483%

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 7603 6534 0 0 0.00% 0.00%
B 7603 6534 5 5 0.07% 0.08%
C 7603 6534 0 0 0.00% 0.00%
D 7603 6534 44 44 0.58% 0.67%

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 11 208 12307 68.09 840 823 168.6
A 13 254 8325 44.48 840 823 168.6
A 3 137 7451 39.3 840 823 168.6
B 3 64 58127 353.68 839 819 162.0
B 12 111 19520 115.41 839 819 162.0
B 11 111 17555 103.29 839 819 162.0
C 14 238 129396 677.17 814 821 189.9
C 7 247 25709 131.08 814 821 189.9
C 3 233 17314 86.86 814 821 189.9
D 8 195 673819 3359.5 820 797 200.3
D 1 52 383429 1909.97 820 797 200.3
D 10 70 21500 103.34 820 797 200.3

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