ASTROSAT CZTI

Data Quality Report

Orbit 29022

Creation date: 2024-06-27T19:59:18.007596
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_123T02_9000004160_29022cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29022cztM0_level2_quad_clean.evt
Size (bytes)489,332,160110,736,000
Size466.7 MB 105.6 MB
Events in quadrant A3,232,983734,045
Events in quadrant B3,331,160768,888
Events in quadrant C3,416,093731,942
Events in quadrant D4,415,496683,167

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135562
B0137862
C0141432
D0173162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6239540.865523%
B6239741.186088%
C62391241.987498%
D62402654.246795%

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 7574 6240 0 0 0.00% 0.00%
B 7574 6240 4 4 0.05% 0.06%
C 7574 6240 2 2 0.03% 0.03%
D 7575 6241 166 166 2.19% 2.66%

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 11026 62.27 837 821 163.9
A 3 137 7732 42.17 837 821 163.9
A 0 226 7150 38.62 837 821 163.9
B 0 190 21246 131.24 839 819 155.6
B 12 111 18425 113.12 839 819 155.6
B 11 111 16762 102.43 839 819 155.6
C 14 238 134050 698.37 826 833 190.8
C 2 16 28868 146.97 826 833 190.8
C 3 233 20271 101.9 826 833 190.8
D 1 52 963191 5069.53 813 795 189.8
D 8 195 327258 1719.68 813 795 189.8
D 2 250 60428 314.12 813 795 189.8

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