ASTROSAT CZTI

Data Quality Report

Orbit 33084

Creation date: 2024-06-27T20:44:47.006352
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/AS1A11_007T07_9000004758_33084cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33084cztM0_level2_quad_clean.evt
Size (bytes)444,821,76057,516,480
Size424.2 MB 54.9 MB
Events in quadrant A2,258,727363,796
Events in quadrant B3,398,499342,375
Events in quadrant C3,608,596350,258
Events in quadrant D3,870,106337,940

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099461
B0133921
C0140911
D0151051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494050.101215%
B49403567.206478%
C49402144.331984%
D49401252.530364%

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 6253 4941 0 0 0.00% 0.00%
B 6253 4941 230 230 3.68% 4.65%
C 6253 4941 162 162 2.59% 3.28%
D 6253 4941 94 94 1.50% 1.90%

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 10186 81.21 580 569 118.4
A 15 169 6115 46.83 580 569 118.4
A 3 137 5507 41.7 580 569 118.4
B 5 172 658718 6079.48 559 544 108.3
B 5 200 227237 2093.94 559 544 108.3
B 0 189 112415 1033.34 559 544 108.3
C 7 221 438055 3359.87 555 558 130.2
C 3 233 419450 3216.99 555 558 130.2
C 8 111 268439 2057.26 555 558 130.2
D 8 195 914596 6245.32 557 544 146.4
D 2 249 198552 1352.9 557 544 146.4
D 12 218 143662 977.86 557 544 146.4

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