ASTROSAT CZTI

Data Quality Report

Orbit 17349

Creation date: 2024-06-27T17:35:20.418537
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_165T12_9000002562_17349cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17349cztM0_level2_quad_clean.evt
Size (bytes)396,624,96073,540,800
Size378.3 MB 70.1 MB
Events in quadrant A2,739,558460,488
Events in quadrant B2,827,841467,841
Events in quadrant C2,865,970444,100
Events in quadrant D3,169,902435,123

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121661
B0122771
C0122961
D0133501

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6002500.833056%
B6003600.999500%
C6003751.249375%
D6003791.316009%

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 6897 6002 0 0 0.00% 0.00%
B 6898 6003 2 2 0.03% 0.03%
C 6898 6003 0 0 0.00% 0.00%
D 6898 6003 25 25 0.36% 0.42%

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 0 226 6173 38.07 712 697 143.8
A 3 137 5430 32.9 712 697 143.8
A 12 194 5198 31.29 712 697 143.8
B 4 173 32628 234.3 711 692 136.3
B 12 111 16711 117.52 711 692 136.3
B 0 229 16380 115.1 711 692 136.3
C 14 238 105436 647.35 688 692 161.8
C 3 233 77201 472.85 688 692 161.8
C 13 61 4692 24.72 688 692 161.8
D 5 222 377040 2217.98 695 673 169.7
D 13 189 85246 498.4 695 673 169.7
D 1 52 45827 266.1 695 673 169.7

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