ASTROSAT CZTI

Data Quality Report

Orbit 22380

Creation date: 2024-06-27T18:40:04.209680
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_007T04_9000003310_22380cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22380cztM0_level2_quad_clean.evt
Size (bytes)472,530,24082,877,760
Size450.6 MB 79.0 MB
Events in quadrant A3,123,211524,839
Events in quadrant B3,260,985538,444
Events in quadrant C3,166,253508,790
Events in quadrant D4,314,447479,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134652
B0137792
C0135302
D0174242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6560350.533537%
B6560590.899390%
C6560650.990854%
D65602493.795732%

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 7575 6561 0 0 0.00% 0.00%
B 7575 6561 1 1 0.01% 0.02%
C 7575 6561 0 0 0.00% 0.00%
D 7575 6561 197 197 2.60% 3.00%

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 3 1 9579 54.45 807 790 161.4
A 13 254 9578 54.45 807 790 161.4
A 15 174 7224 39.86 807 790 161.4
B 0 190 44240 285.41 810 788 152.2
B 12 111 18242 114.64 810 788 152.2
B 11 111 16499 103.2 810 788 152.2
C 14 238 123408 677.6 778 786 181.0
C 0 10 7003 34.35 778 786 181.0
C 13 61 5535 26.24 778 786 181.0
D 1 52 1162154 6221.32 770 749 186.7
D 7 38 171674 915.6 770 749 186.7
D 13 172 36892 193.61 770 749 186.7

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter