ASTROSAT CZTI

Data Quality Report

Orbit 28529

Creation date: 2024-06-27T19:52:53.450235
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_058T09_9000004100_28529cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28529cztM0_level2_quad_clean.evt
Size (bytes)526,219,200106,911,360
Size501.8 MB 102.0 MB
Events in quadrant A3,291,993732,347
Events in quadrant B3,650,445730,463
Events in quadrant C3,227,364684,088
Events in quadrant D5,345,432657,200

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136651
B0146731
C0133801
D0203681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62231001.606942%
B62231983.181745%
C62231191.912261%
D62243485.591260%

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 7448 6223 2 2 0.03% 0.03%
B 7448 6223 82 82 1.10% 1.32%
C 7448 6223 0 0 0.00% 0.00%
D 7449 6224 280 280 3.76% 4.50%

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 28627 167.1 844 829 166.4
A 13 254 12154 68.08 844 829 166.4
A 0 226 7426 39.66 844 829 166.4
B 10 245 287656 1846.43 826 809 155.4
B 0 230 33521 210.57 826 809 155.4
B 4 171 27004 168.62 826 809 155.4
C 14 238 129609 705.3 786 793 182.6
C 3 233 20272 106.65 786 793 182.6
C 7 247 12369 63.38 786 793 182.6
D 1 52 1161839 6195.72 792 773 187.4
D 8 195 993394 5296.86 792 773 187.4
D 2 250 75955 401.19 792 773 187.4

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