ASTROSAT CZTI

Data Quality Report

Orbit 20250228_C07_001T02_9000006452_level2

Creation date: 2025-03-15T20:46:32.080127
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/AS1C07_001T02_9000006452cztM0_level2.fits modeM0/AS1C07_001T02_9000006452cztM0_level2_quad_clean.evt
Size (bytes)3,898,483,2005,581,010,880
Size3.6 GB 5.2 GB
Events in quadrant A22,508,07435,196,758
Events in quadrant B21,847,01638,154,004
Events in quadrant C21,678,05633,173,697
Events in quadrant D17,836,17428,429,903

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100960
B0100970
C0100980
D0100980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06020
B06020
C06020
D06020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017444550
B015436660
C016329080
D019660250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4974715719311.496751%
B4974925375110.804395%
C4974325634811.327779%
D4975139776519.650743%

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 599982 496176 0 0 0.00% 0.00%
B 599982 495955 0 0 0.00% 0.00%
C 599982 495308 0 0 0.00% 0.00%
D 599982 488965 0 0 0.00% 0.00%

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 14 188 24530 9.92 5981 5566 1911.6
A 9 255 23902 9.59 5981 5566 1911.6
A 14 204 19411 7.24 5981 5566 1911.6
B 2 9 25152 14.8 5815 5532 1325.9
B 2 8 23039 13.2 5815 5532 1325.9
B 2 245 17833 9.28 5815 5532 1325.9
C 15 127 17769 6.25 5885 5377 1982.3
C 2 31 17529 6.13 5885 5377 1982.3
C 6 64 17361 6.05 5885 5377 1982.3
D 6 218 23215 10.78 5167 4592 1727.4
D 14 31 16049 6.63 5167 4592 1727.4
D 11 3 15742 6.45 5167 4592 1727.4

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