ASTROSAT CZTI

Data Quality Report

Orbit 06313

Creation date: 2024-06-27T15:05:29.624438
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/AS1A02_070T01_9000000832_06313cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06313cztM0_level2_quad_clean.evt
Size (bytes)489,692,16089,023,680
Size467.0 MB 84.9 MB
Events in quadrant A3,545,449556,318
Events in quadrant B4,006,204565,654
Events in quadrant C3,083,803562,931
Events in quadrant D3,736,367540,373

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151743
B0163452
C0140582
D0157922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67551492.205774%
B67552403.552924%
C6755200.296077%
D6755801.184308%

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 7545 6755 50 50 0.66% 0.74%
B 7545 6755 113 113 1.50% 1.67%
C 7544 6755 2 2 0.03% 0.03%
D 7544 6754 27 27 0.36% 0.40%

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 15 174 273103 1625.01 808 788 167.6
A 8 15 107530 636.97 808 788 167.6
A 13 251 51045 299.9 808 788 167.6
B 3 64 705467 4476.82 808 789 157.4
B 15 204 153024 967.15 808 789 157.4
B 12 111 15032 90.49 808 789 157.4
C 1 16 27657 147.92 779 783 181.7
C 9 54 16031 83.93 779 783 181.7
C 13 61 6046 28.97 779 783 181.7
D 2 63 317088 1666.41 778 754 189.8
D 12 220 120958 633.22 778 754 189.8
D 13 169 114967 601.66 778 754 189.8

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