ASTROSAT CZTI

Data Quality Report

Orbit 32078

Creation date: 2024-06-27T20:36:13.729697
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/AS1C06_002T04_9000004684_32078cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32078cztM0_level2_quad_clean.evt
Size (bytes)44,948,1608,429,760
Size42.9 MB 8.0 MB
Events in quadrant A263,94877,694
Events in quadrant B432,93026,155
Events in quadrant C306,95959,943
Events in quadrant D326,58354,707

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129
B01614
C01411
D01512

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069265860
B01955218112
C0107199514
D0103339105

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07161
B07763
C07563
D06951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50450.992063%
B22814463.157895%
C430286.511628%
D37851.322751%

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 7107 717 0 0 0.00% 0.00%
B 6534 288 110 110 1.68% 38.19%
C 6553 607 4 4 0.06% 0.66%
D 7086 556 2 2 0.03% 0.36%

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 1006 59.83 68 66 15.7
A 3 137 654 37.43 68 66 15.7
A 0 226 633 36.09 68 66 15.7
B 10 245 286883 42865.4 24 23 6.7
B 6 159 47197 7049.2 24 23 6.7
B 5 172 1672 246.41 24 23 6.7
C 3 233 74000 5136.64 54 54 14.4
C 14 238 9284 641.16 54 54 14.4
C 0 10 8293 572.32 54 54 14.4
D 12 227 69835 5050.62 50 48 13.8
D 8 195 60696 4389.21 50 48 13.8
D 12 233 4351 311.42 50 48 13.8

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