ASTROSAT CZTI

Data Quality Report

Orbit 17311

Creation date: 2024-06-27T17:34:50.611946
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_010T02_9000002556_17311cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17311cztM0_level2_quad_clean.evt
Size (bytes)424,094,400110,010,240
Size404.4 MB 104.9 MB
Events in quadrant A3,073,431752,627
Events in quadrant B3,096,439759,339
Events in quadrant C3,009,897696,805
Events in quadrant D3,243,560691,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130281
B0130271
C0128681
D0136421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6181781.261932%
B6181861.391361%
C6181761.229575%
D6181751.213396%

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 7506 6182 0 0 0.00% 0.00%
B 7506 6182 0 0 0.00% 0.00%
C 7506 6182 0 0 0.00% 0.00%
D 7506 6182 11 11 0.15% 0.18%

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 23 16061 96.09 796 782 159.0
A 0 226 7794 44.1 796 782 159.0
A 3 137 5705 30.96 796 782 159.0
B 12 111 17396 110.77 793 776 150.0
B 11 111 15261 96.54 793 776 150.0
B 14 111 13280 83.34 793 776 150.0
C 14 238 116032 673.37 738 743 171.2
C 3 233 14421 79.89 738 743 171.2
C 13 61 5349 26.9 738 743 171.2
D 5 222 172724 944.95 753 730 182.0
D 1 52 77146 419.83 753 730 182.0
D 11 176 57174 310.11 753 730 182.0

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