ASTROSAT CZTI

Data Quality Report

Orbit 24283

Creation date: 2024-06-27T19:04:19.652094
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_047T08_9000003590_24283cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24283cztM0_level2_quad_clean.evt
Size (bytes)583,001,280128,136,960
Size556.0 MB 122.2 MB
Events in quadrant A3,146,017882,960
Events in quadrant B3,310,518892,970
Events in quadrant C5,058,977829,249
Events in quadrant D5,680,538802,108

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138121
B0143251
C0202581
D0215931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6796340.500294%
B6797420.617920%
C67971221.794910%
D67973805.590702%

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 7691 6796 0 0 0.00% 0.00%
B 7692 6797 2 2 0.03% 0.03%
C 7692 6797 7 7 0.09% 0.10%
D 7692 6797 345 345 4.49% 5.08%

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 13 254 10914 61.91 815 797 163.4
A 3 137 7315 39.89 815 797 163.4
A 0 226 7092 38.52 815 797 163.4
B 15 33 92216 595.44 811 790 153.5
B 12 111 18565 115.76 811 790 153.5
B 11 111 16230 100.56 811 790 153.5
C 7 247 1765397 9872.77 767 771 178.7
C 2 16 154171 858.25 767 771 178.7
C 14 238 124110 690.06 767 771 178.7
D 8 195 1463041 7920.87 766 744 184.6
D 1 52 1007498 5453.32 766 744 184.6
D 12 233 160272 864.12 766 744 184.6

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