ASTROSAT CZTI

Data Quality Report

Orbit 22059

Creation date: 2024-06-27T18:36:00.485225
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_167T01_9000003264_22059cztM0_level2.evt modeM0/AS1A07_167T01_9000003264_22059cztM0_level2_quad_clean.evt
Size (bytes)469,920,96086,863,680
Size448.2 MB 82.8 MB
Events in quadrant A3,338,457565,649
Events in quadrant B3,257,916570,387
Events in quadrant C3,229,998541,893
Events in quadrant D3,992,433527,905

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136891
B0133731
C0133731
D0159111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60791061.743708%
B6080961.578947%
C60801171.924342%
D60802604.276316%

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 7389 6079 8 8 0.11% 0.13%
B 7389 6079 1 1 0.01% 0.02%
C 7390 6080 0 0 0.00% 0.00%
D 7390 6080 123 123 1.66% 2.02%

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 5 16 122637 748.22 834 820 162.8
A 13 254 8954 49.96 834 820 162.8
A 0 226 7428 40.58 834 820 162.8
B 12 111 17066 108.48 822 804 149.9
B 11 111 15264 96.46 822 804 149.9
B 0 197 13903 87.38 822 804 149.9
C 14 238 129296 713.95 793 800 180.0
C 10 22 8151 40.84 793 800 180.0
C 13 61 5639 26.89 793 800 180.0
D 1 52 708865 3719.58 805 784 190.4
D 2 136 97987 510.61 805 784 190.4
D 13 172 42332 218.25 805 784 190.4

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