ASTROSAT CZTI

Data Quality Report

Orbit 29734

Creation date: 2024-06-27T20:07:16.039728
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/AS1A10_007T01_9000004276_29734cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29734cztM0_level2_quad_clean.evt
Size (bytes)688,680,000102,000,960
Size656.8 MB 97.3 MB
Events in quadrant A3,256,447672,276
Events in quadrant B5,549,207680,383
Events in quadrant C5,140,447644,192
Events in quadrant D6,460,112626,367

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138862
B0211073
C0195052
D0239382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6679210.314418%
B66782563.833483%
C66784496.723570%
D66784256.364181%

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 7609 6680 0 0 0.00% 0.00%
B 7608 6678 49 49 0.64% 0.73%
C 7608 6679 277 277 3.64% 4.15%
D 7608 6678 318 318 4.18% 4.76%

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 12 16 17386 97.75 838 820 169.5
A 13 254 12956 71.61 838 820 169.5
A 12 194 8661 46.27 838 820 169.5
B 6 159 1950065 12187.19 833 811 159.9
B 0 229 295398 1841.83 833 811 159.9
B 12 111 19668 117.9 833 811 159.9
C 3 233 1803743 9585.77 802 808 188.1
C 14 238 131930 697.14 802 808 188.1
C 10 22 34429 178.75 802 808 188.1
D 8 195 2012734 10532.56 797 778 191.0
D 7 80 967181 5059.1 797 778 191.0
D 7 223 347870 1817.02 797 778 191.0

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