ASTROSAT CZTI

Data Quality Report

Orbit 30210

Creation date: 2024-06-27T20:12:16.754150
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_071T15_9000004346_30210cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30210cztM0_level2_quad_clean.evt
Size (bytes)513,028,80086,166,720
Size489.3 MB 82.2 MB
Events in quadrant A3,189,956559,470
Events in quadrant B4,897,300571,787
Events in quadrant C3,223,984536,175
Events in quadrant D3,812,594515,860

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129902
B0185512
C0131032
D0153233

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6104380.622543%
B6104631.032110%
C6104590.966579%
D6103801.310831%

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 7484 6105 3 3 0.04% 0.05%
B 7484 6105 0 0 0.00% 0.00%
C 7484 6105 0 0 0.00% 0.00%
D 7483 6104 64 64 0.86% 1.05%

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 8 192 24958 147.4 821 808 163.8
A 13 254 10036 56.32 821 808 163.8
A 3 137 7673 41.9 821 808 163.8
B 6 159 1676114 10798.07 820 802 155.1
B 12 111 18733 115.57 820 802 155.1
B 11 111 17114 105.14 820 802 155.1
C 14 238 127658 693.86 785 792 182.8
C 3 233 20173 106.0 785 792 182.8
C 2 114 14261 73.66 785 792 182.8
D 8 195 320897 1740.34 772 756 184.0
D 7 223 247494 1341.31 772 756 184.0
D 13 104 145474 786.71 772 756 184.0

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